Skip to content

Harm-reduction information only — not medical advice. In crisis or experiencing adverse effects, contact a healthcare professional or your local emergency services immediately.

AnabolicPlotter logo AnabolicPlotter
Search (no-JS fallback)

Compound half-life reference

Compare the timing used by the plotter. A model-derived half-life, a study measurement and an assumed value are different kinds of information. Open each timing basis for the source context.

Relative models can use measured timing transferred from another route, animal data or an explicit assumption. None of these values is a personal clearance time or a dosing interval.

Compound Half-life Timing basis
Testosterone Enanthate 7.9 days
Model-derived

Derived from the published model rates. Testosterone enanthate 200 mg/mL in sesame oil (West-Ward), as studied in the IM reference cohort.; Intramuscular. Ten adult men with hypogonadism already receiving IM testosterone enanthate; adult model reanalysis of the 2015 cohort..

Model details and sources
Testosterone Cypionate 3.8 days
Model-derived

Derived from the published model rates. Testosterone cypionate depot injection studied in the repeated-dose cohort analyzed by Bi et al.; Intramuscular. Population PK model derived from 31 healthy adult men; the display uses its typical fixed parameters rather than individual fitted parameters..

Model details and sources
Testosterone Propionate 24 hours
Reconstructed estimate

Tmax reported; half-life inferred and rounded from the 48–72 h decline in Fig 1 (~10 to~4.5 ng/mL), about 21 h. Use 24 h as an explicit approximate shape assumption.

Model details and sources
Testosterone Undecanoate (Castor Oil) 34 days
Relative model

33.9 day terminal from Behre 1999; 7 day Tmax from current Nebido label is total testosterone. Combining these yields only a relative illustrative shape.

  • The faster rate is inferred to match the 168 h source-scoped peak time; absorption half-life 35.580899063328104 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • The 14-person 1999 formulation and current Nebido label describe different kinetic summaries; 33.9 day terminal and 90 day release half-life are not interchangeable.
  • No source-matched baseline/suppression model was established here. Use relative output while retaining a stated castor-oil timing scenario.
  • Stored 0.65 resembles an ester mass fraction, not a demonstrated systemically available fraction.
Model details and sources
Testosterone Undecanoate (MCT Oil) 20 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (120 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Retain 20 day/8.5 day timings only as assumptions, not measured MCT kinetics.
  • Unknown formulation concentration, injection volume, site, population, and absolute exposure.
  • Do not infer MCT bioavailability from nominal ester-to-testosterone mass fraction.
Model details and sources
Testosterone Undecanoate (Oral) 18.4 hours
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (4.6 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Total testosterone includes baseline and suppression; a per-dose additive amplitude was not established.
  • The 18.4 h terminal shape and 4.9 h Tmax require product-specific interpretation; retained only as assumptions.
  • The historical research paper uses testosterone-equivalent doses; JATENZO strength is testosterone-undecanoate mass. Do not swap these bases.
Model details and sources
Testosterone Phenylpropionate 2.5 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (15 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Standalone timing remains an illustrative assumption.
  • Ester mass fraction is not an independently measuredF.
  • Never sum total-blend testosterone endpoints as separate ester contributions.
Model details and sources
Testosterone Isocaproate 3.1 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (18.6 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Standalone timing remains an illustrative assumption.
  • Ester mass fraction is not an independently measuredF.
  • Never sum total-blend testosterone endpoints as separate ester contributions.
Model details and sources
Testosterone Suspension 33 hours
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (8.25 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • 33 h/6 h parameters are retained only as animal-informed shape assumptions; not measured human suspension PK.
  • The supplied CSV itself says its multiplier was adjusted to match other esters.
  • No validated human dose-to-concentration or particulate formulation mapping was established.
Model details and sources
Testosterone Decanoate 5.6 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (33.6 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Standalone timing remains an illustrative assumption.
  • Ester mass fraction is not an independently measuredF.
  • Never sum total-blend testosterone endpoints as separate ester contributions.
Model details and sources
Testosterone Gel (Testogel/AndroGel) 3 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (17.9 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • 71.6 h is not confirmed as a single-dose topical terminal half-life by this label.
  • Keep only a clearly assumed relative skin-depot shape until product-specific baseline-corrected dynamics are fitted.
  • Absorbed 10% must not be applied again to an already observed serum endpoint; application site/strength are not interchangeable.
Model details and sources
Testosterone Base (Sublingual) 1.1 hour
Relative model

Male 5 mg cyclodextrin single-dose study timing; illustrative when applied to generic sublingual products.

  • The faster rate is inferred to match the 0.3333333333333333 h source-scoped peak time; absorption half-life 0.08103482259146995 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Suggested relative shape uses male cyclodextrin 5 mg timing; it does not establish troche PK or a 25 mg routine dose.
  • No baseline-corrected concentration endpoint was recovered.
Model details and sources
Estradiol Topical (EstroGel) 36 hours
Relative model

Estro Gel label apparent terminal half-life; legacy 4-hour Tmax not verified as universal.

  • Absorption half-life is assumed to be one quarter of the slower timescale (9 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not fit repeated total estradiol as per-dose exogenous amplitude.
  • Gel mass in grams is not estradiol mass inmg.
  • Application area/washing/product affect absorption; present timing as formulation-specific.
Model details and sources
Estradiol Cypionate 3.7 days
Relative model

Approximate peak timing from Oriowo human IM study; stored 89.65 h terminal rate not established by this source. The retained 89.650000008 h slower timescale is an assumption.

  • The faster rate is inferred to match the 96 h source-scoped peak time; absorption half-life 50.73857155001672 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Widely repeated 337–338 pg/mL at 5 mg is a total-estradiol endpoint; baseline treatment must be established before an exogenous model.
  • Arachis-oil study is not proof that every carrier/SC formulation shares kinetics.
  • Keep numerical dose serialization; no automatic ester-mass/F multiplier.
Model details and sources
Estradiol Valerate 3.5 days
Relative model

Approximate Oriowo human IM peak; legacy 84 h half-life remains an assumption, not proven by the label. The retained 84 h slower timescale is an assumption.

  • The faster rate is inferred to match the 48 h source-scoped peak time; absorption half-life 16.385732568003874 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not adopt the commonly repeated 667 pg/mL total peak as an exogenous per-dose peak without baseline handling.
  • Oral estradiol valerate and IM valerate are different routes.
Model details and sources
Progesterone (Oral) 22.8 hours
Relative model

Legacy 22.78 h/1.5 h from a repeated-dose capsule study cannot establish universal per-dose kinetics. The retained 22.78 h slower timescale is an assumption.

  • Absorption half-life is assumed to be one quarter of the slower timescale (5.695 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Food, soft vs hard capsule, first-pass metabolites and assay cross-reactivity materially affect measured exposure.
  • Baseline progesterone and serum/plasma assay must be specified; no invented 10% F.
Model details and sources
Progesterone (Vaginal) 34.8 hours
Relative model

Crinone 90 mg label terminal absorption-limited timing only; intrinsic elimination 5–20 min. Do not call 34.8 h elimination of circulating progesterone.

  • The faster rate is inferred to match the 6.8 h source-scoped peak time; absorption half-life 1.4108234300580222 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • One-compartment using 34.8 h terminal tail overpredicts AUC 2.44-fold and daily peak 40.8 vs observed 15.97.
  • 19.8% relative bioavailability already embodied in Cmax; not an extra scale.
  • Gel/capsule/insert and local uterine action are not interchangeable.
Model details and sources
T3 (Triiodothyronine) 22.0 hours
Relative model

Jonklaas 2015 observed timing;22 h depends on chosen late timepoints and endogenous physiology.

  • The faster rate is inferred to match the 2.5 h source-scoped peak time; absorption half-life 0.4320654238413822 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Use 0.05 mg=50 mcg, not 50 mg.
  • Endogenous suppression/redistribution mean subtracting one fixed baseline is not a complete repeated-dose exogenous model.
  • Peak-normalized one-compartment AUC 0–24=4046,2.18×observed.
Model details and sources
Trenbolone Enanthate 11 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (66 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Retain ester-specific timing only as an explicit assumption.
  • No route/formulation-matched human Cmax/reference-dose/volume calibration established in this search.
  • Veterinary implants, oral parent metabolism and other esters do not identify an IM oil curve.
Model details and sources
Trenbolone Acetate 36 hours
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (9 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Retain ester-specific timing only as an explicit assumption.
  • No route/formulation-matched human Cmax/reference-dose/volume calibration established in this search.
  • Veterinary implants, oral parent metabolism and other esters do not identify an IM oil curve.
Model details and sources
Trenbolone Hexahydrobenzylcarbonate 8 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (48 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Retain ester-specific timing only as an explicit assumption.
  • No route/formulation-matched human Cmax/reference-dose/volume calibration established in this search.
  • Veterinary implants, oral parent metabolism and other esters do not identify an IM oil curve.
Model details and sources
Trestolone Acetate (MENT) 3.7 hours
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.93333325 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • The 224 min shape may be retained only as an explicit free-MENT analogy, with formulation mismatch visible in methods.
  • Do not treat implant serum levels as a peak per injected milligram or apply the 0.87 ester mass fraction asF.
Model details and sources
Masteron Propionate 2 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (12 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • 48 h timing remains a convention/assumption, not primary PK verified here.
  • Drostanolone ester-to-base fraction~0.84 is not empirical bioavailability.
Model details and sources
Masteron Enanthate 8 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (48 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • 192 h timing is an explicit ester analogy.
  • No parent-drug plasma endpoint or route/formulation-matched human dose reference established.
Model details and sources
Mesterolone (Proviron) 12.5 hours
Reconstructed estimate

Midpoint of label 12–13 h terminal range; reportedTmax 1.6 h.

Model details and sources
Nandrolone Phenylpropionate 2.4 days
Reconstructed estimate

Table 4 empirical peak/time with reported absorption half-time.

Model details and sources
Nandrolone Decanoate 7.7 days
Reconstructed estimate

Table 4 empirical peak/time with reported absorption half-time.

Model details and sources
Boldenone Undecylenate (Equipoise) 14 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (84 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • 336 h is retained only as an assumed human scenario; the equine paper reports 123 h terminal, not 14 days.
  • Oil/ester preparation, species scaling and dose-to-human concentration are unresolved.
Model details and sources
Dihydroboldenone (DHB) 9 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (54 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Unclear intended ester/product under the generic DHB entry; 216 h cannot be presented as a verified free-base half-life.
  • A relative shape remains an explicitly assumed scenario until formulation-specific evidence is available.
Model details and sources
Primobolan (Oral) 5.0 hours
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (1.2498 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • 5 h timing is an assumption.
  • 0.88 matches approximate parent/acetate mass fraction and is not oral bioavailability.
  • Urine recovery percentages and radiolabeled metabolites must not become parent plasma endpoints.
Model details and sources
Primobolan (Injectable) 11 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (63 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Keep 252 h half-life as an explicit legacy assumption only; label does not report that terminal value.
  • A parent-concentration model must not be calibrated to total drug-related equivalents.
  • Oil formulation is castor oil/benzylbenzoate; ester fraction is notF.
Model details and sources
Halotestin 2 hours
Relative model

Primary crossover half-life 2 h; midpoint of reported 1–2 h peak times, no oral-specific point.

  • The faster rate is inferred to match the 1.5 h source-scoped peak time; absorption half-life 0.6075545274580504 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Cannot select a point from pooled 40–150 ng/mL as the oral mean.
  • StoredF 0.57 is not established by this relative-bioavailability experiment.
  • MidpointTmax 1.5 h is an estimate within the reported 1–2 h range.
Model details and sources
Anadrol 8 hours
Relative model

Tmax source 210 min÷60; 8 h is declared assumed terminal shape, not reverified primary parameter.

  • The faster rate is inferred to match the 3.5 h source-scoped peak time; absorption half-life 1.0316907771179677 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Half-life 8 h retained as an explicit shape estimate; original abstract verifies peak/time but not terminal half or cohort count. Full article access was limited.
  • Food state/formulation details and linear accumulation are not fully established.
  • No extra 0.95 F multiplier; observed oral endpoint already contains absorption.
Model details and sources
Dianabol 5.3 hours
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (1.3125 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • 5.25 h timing and 0.95 F lack matched primary support in this pass; show timing as assumed and discardF amplitude.
  • Equine plasma studies cannot establish human absolute concentration.
Model details and sources
Turinabol 16 hours
Relative model

Human oral Tmax~3 h and IV parent terminal half 16 h; relative oral reconstruction, enterohepatic cycling omitted.

  • The faster rate is inferred to match the 3 h source-scoped peak time; absorption half-life 0.6130751586112678 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • No numeric parent Cmax in accessible abstract.
  • 16 hIV terminal can inform relative terminal shape, not prove a simple oral profile.
  • First-pass loss and parent-versus-metabolite separation preclude usingF 1 or total radioactivity as parent concentrations.
Model details and sources
Winstrol (Oral) 9 hours
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (2.25 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • 9 h is an explicit assumed human timing, not a verified measured parameter here.
  • F=1 is unsupported; no unit/reference-dose endpoint established.
Model details and sources
Winstrol (Injectable) 3.4 days
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (20.52 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • 82.08 h/168 h values can only remain explicitly animal-informed/assumed relative shape; 7 dayTmax not verified by abstract.
  • Human IM clinical effects do not calibrate a human drug-concentration curve.
Model details and sources
Anavar 9.5 hours
Relative model

Tmax oral-tablet mean verified; 9.5 h stays a conservative label-era assumption, not derived fromMCT 6.7 h.

  • The faster rate is inferred to match the 1.6 h source-scoped peak time; absorption half-life 0.31469202358666837 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Exactmean dose/per-person dose-to-table mapping is absent; a cohort mean Cmax cannot be confidently assigned to 10 mg.
  • A possible approximate reference is 8.45 mg (=0.1 mg/kg ×median 84.5 kg), but this is not a measuredmean dose and should require an explicitly accepted additional assumption.
  • The 6.7 h mean belongs tobuccal MCT; tablets described as similar without a numericaltable half.
  • Use relative output rather than silently choose a reference dose; fixed-dose FDA table remains a specific follow-up.
Model details and sources
Superdrol 10.0 hours
Relative model

Legacy shape assumption only; no route-matched human timing confirmed in the checked sources. Do not call this a measured half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (2.50000025 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • 10 h timing remains explicitly assumed; 0.5 F not verified.
  • Do not borrow methylstenbolone-horse exposure or cell persistence as human methasterone half-life.
Model details and sources
HCG 36.8 hours
Reconstructed estimate

Study endpoint used in an estimated curve. Highly purified urinary hCG, Choriomon, subcutaneous injection; 24 healthy women aged 20–45 in a crossover pharmacokinetic analysis, with oral-contraceptive pituitary downregulation.

Model details and sources
Human Growth Hormone (HGH) 2.4 hours
Reconstructed estimate

Omnitrope solution single-dose study EP2K-00-PhIAQ, N=24; apparent SC tail, not intrinsic IV elimination.

Model details and sources
Semaglutide Injection (Ozempic/Wegovy) 7.4 days
Model-derived

Derived from the published model rates. Subcutaneous semaglutide solution in the SUSTAIN phase III program; Subcutaneous. Published reference: 85 kg white, non-Hispanic female under 65 with type 2 diabetes and normal renal function.

Model details and sources
Semaglutide Oral (Rybelsus) 6.6 days
Model-derived

Derived from the published model rates. Original oral semaglutide/SNAC formulation studied with 300 mg SNAC; first-generation Rybelsus context, not newer oral formulations; Oral tablet. Healthy 85 kg adult without type 2 diabetes; fixed published reference parameters, not an average patient.

Model details and sources
Tirzepatide (Mounjaro) 5.1 days
Model-derived

Derived from the published model rates. Subcutaneous tirzepatide in the published pooled-study model, using its estimated relative-bioavailability scenario; Subcutaneous. Constructed adult female reference with type 2 diabetes: 90 kg and BMI 32.5 kg/m²; not a published average participant.

Model details and sources
Retatrutide 5.6 days
Reconstructed estimate

Coskun 2022 Table 1, 1 mg cohort: geometric mean terminal half-life134h; median Tmax48h.

Model details and sources
Mazdutide 8.8 days
Reconstructed estimate

Innovent Chinese label: Tmax7–28h, rounded mean terminal half-life about10days. Label apparent clearance .0368L/h and volume11.2L.

Model details and sources
DNP 3.7 days
Relative model

Current 88.78 h and 0.226 h peak unsupported for general human use. Recent overdose case half 18 h is context-specific and must not replace this with a supposedly universal half-life. The retained 88.77984000000001 h slower timescale is an assumption.

  • Absorption half-life is assumed to be one quarter of the slower timescale (22.194960000000002 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Relative scenario only; do not attach a safe concentration threshold or clearance assurance.
  • Rat prodrug, parent DNP, poisoning, and hemoperfusion are not interchangeable.
Model details and sources
Arimidex (Anastrozole) 46 hours
Relative model

Adult 1 mg single-dose study, rather than pediatric repeated-dose source.

  • The faster rate is inferred to match the 1.52 h source-scoped peak time; absorption half-life 0.19138648582453316 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • One-compartment Cmax /timing normalization predicts 594.14 ng·h/m L,40% above source 423; retain relative until a defensible multi-phase curve is established.
  • No extra 80% F; no estradiol-suppression prediction.
Model details and sources
Aromasin (Exemestane) 8.9 hours
Relative model

Mauras 2003 male cohort; first sample 1 h already at peak; true Tmax could be earlier. Other populations/assays reportabout 24 h.

  • The faster rate is inferred to match the 1 h source-scoped peak time; absorption half-life 0.17232608972767566 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • One-compartment AUC 223.47 is 6.14×source 36.4.
  • Cohort includes adolescents; not a normative adult efficacy/safety reference.
  • Drug concentration is not amount of estrogen suppression.
Model details and sources
Clenbuterol (Oral) 35 hours
Relative model

Yamamoto 1985 total unchanged parent; do not substitute newer R-enantiomer peaks.

  • The faster rate is inferred to match the 2.5 h source-scoped peak time; absorption half-life 0.3786961309490016 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • A peak-normalized 35 h curve predicts~0.962 ng/mL after 40 mcg q 12 h vs reported 0.5–0.6 plateau; source constraints conflict.
  • 0.04 mg=40 mcg; no extra 90% F.
  • R-enantiomer and racemate values cannot be mixed.
Model details and sources
Nolvadex (Tamoxifen) 6 days
Relative model

Label terminal 120–168 h;144 h midpoint is a timing assumption.

  • The faster rate is inferred to match the 5 h source-scoped peak time; absorption half-life 0.6364052012164843 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • One-compartment predicts steady mean 354.7 ng/mL (~2.91×122); biphasic parent kinetics and metabolites require more than aterminal exponential.
  • Do not sum parent+N-desmethyl/endoxifen as equal drug action.
  • Tablet dose is tamoxifen base equivalent, not mass of citrate salt.
Model details and sources
Clomid (Clomiphene) 5 days
Relative model

Five-day timing is a legacy illustration; no single measured half-life for the mixture accepted. The retained 120 h slower timescale is an assumption.

  • Absorption half-life is assumed to be one quarter of the slower timescale (30 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Two separate 15 ng/mL peaks at different times are not a 30 ng/mL mixture Cmax.
  • Do not model enclomiphene alone as Clomid.
Model details and sources
Cabergoline 4.6 days
Reconstructed estimate

Fed-arm single-dose plasma/urine study, not an averaged generichalf-life.

Model details and sources
Letrozole 2.5 days
Relative model

Noh 2012 Femara reference arm;58.97 h mean terminal,1.5 h median peak.

  • The faster rate is inferred to match the 1.5 h source-scoped peak time; absorption half-life 0.17875714080544616 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • One-compartment AUC 0–312=3233.92 vs 2079.69,1.555×.
  • 99.9% bioavailability is not an extra factor on observed peaks.
Model details and sources
Nebivolol 16.9 hours
Relative model

Do not reuse hydroxylated-metabolite timing as parent; parent 1.37 h in Briciu 2014 baseline arm. The retained 16.9300000008 h slower timescale is an assumption.

  • Absorption half-life is assumed to be one quarter of the slower timescale (4.2325000002 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Absolute calibration needs a consistent parent/isomer/phenotype model.
  • Combining label 12 h with EM peak 1.66 predicts AUC 30.45 (~3.31×9.19), illustrating why mixed-study parameters are rejected.
  • Hydroxylated metabolites and racemic parent are not interchangeable.
Model details and sources
Telmisartan 23.6 hours
Relative model

40 mgarmof Zhang 2006; not dose independent amplitude.

  • The faster rate is inferred to match the 1.76 h source-scoped peak time; absorption half-life 0.26969499003130265 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • 40 to 80 mg doubling yields~5.55×peak in this cohort; linear dose scaling invalid.
  • One-compartment 40 mg AUC 5851 vs 1611 (3.63×).
  • Paper product described Micardis Plus; confirm coformulation before choosing a future fitted model.
Model details and sources
Tadalafil 17.5 hours
Reconstructed estimate

Forgue 2006 pooled single-dose means; not an individualfit.

Model details and sources
Ostarine (MK-2866 / Enobosarm) 22 hours
Relative model

Coss 2016 study 1 parent drug;1 hmedian Tmax,22 hmean terminal.

  • The faster rate is inferred to match the 1 h source-scoped peak time; absorption half-life 0.13530751987917727 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • One-compartment AUC 1834 is 2.44×source 752.3; long terminal phase has lower weight.
  • 15 mg UI default is 5×selected 3 mg study, not verified individual dose response.
  • No extra 100% F; relative fallback remains explicit until a multiphasic fit is established.
Model details and sources
Ligandrol (LGD-4033) 30 hours
Reconstructed estimate

30 his midpoint ofpublished 24–36 h;3 happroximate first-dose peak fromoriginal Figure 1.

Model details and sources
Andarine (S4) 4 hours
Relative model

Approximately 4 h rat/dog preclinical time course; human timing explicitly unverified.

  • Absorption half-life is assumed to be one quarter of the slower timescale (1 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not call 4 h a human measured half-life.
  • No human absolute profile identified; retain relative with assumed timing.
  • Animal allometry/scaling is not validated by a dose-conversion formula alone.
Model details and sources
Testolone (RAD-140) 44.7 hours
Relative model

Limited oncology-study terminal estimate;6 hwasnot universal Tmax.

  • Absorption half-life is assumed to be one quarter of the slower timescale (11.175 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • No adequate single Bateman kernel from one patient terminal rate and multiple peaks.
  • 10 mg extrapolation cannot be presented as measured healthy male PK.
  • Doping microdose urine concentrations are not blood Cmax.
Model details and sources
Cardarine (GW-501516) 20 hours
Relative model

Stored 20 hnotverified; daily trial administration is not proof of 24 hhalf-life. The retained 20 h slower timescale is an assumption.

  • Absorption half-life is assumed to be one quarter of the slower timescale (5 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • No sourced human Cmax, reference amplitude or half-life found in this pass.
  • Exposure units must be relative; no inferred blood scale via other SARMs.
Model details and sources
S-23 11.9 hours
Relative model

Animal-derived oral terminal rate; not a human estimate validated by measurement.

  • Absorption half-life is assumed to be one quarter of the slower timescale (2.975 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Using 11.9 h as an illustrative shape is allowed only with animal-derived/assumed human status.
  • Do not scale rat Cmax to human by body mass conversion.
Model details and sources
Metformin (Immediate Release) 3.2 hours
Reconstructed estimate

Caille 1993 single 500 mg tablet study; the 3.16 h plasma half-life belongs to that study, not the longer whole-blood half-life.

Model details and sources
Ezetimibe (Zetia / Ezetrol) 19.4 hours
Relative model

Uses parent-ezetimibe timing from the fasted 10 mg Ezetrol arm in Sun 2023: 19.38 h terminal half-life and 5 h median peak. Absorption rate is inferred, not directly measured.

  • A first-order absorption half-life of 1.15596 h reproduces the selected 5 h peak with the study terminal rate.
  • Enterohepatic recycling and the active glucuronide metabolite are not represented; a smooth single peak is a simplification.
  • A single fixed 1 mg input peaks at 1 relative unit. This normalization is not a blood concentration or potency comparison.
  • Linear dose scaling and repeated-dose addition illustrate a timing scenario; they are not validated estimates of total ezetimibe exposure or LDL response.
  • An absolute one-compartment fit to the parent peak and timing would give AUC∞ 116.35 ng·h/mL versus the study 68.62 (+69.6%); its blood-level amplitude was therefore not adopted.
Model details and sources
Empagliflozin (Jardiance) 12.4 hours
Model-derived

Derived from the published model rates. Empagliflozin oral tablets in pooled phase I–III type 2 diabetes studies; Oral. Fixed source reference: 50-year-old non-smoking, non-Asian man with type 2 diabetes, BMI 25 kg/m² and eGFR 100 mL/min/1.73 m².

Model details and sources
Finasteride 4.5 hours
Relative model

The Propecia label gives a 4.5 h first-dose half-life and a 1.3 h last-dose peak time in healthy men. This simplified curve combines those timings as an explicit approximation; it is not a calibrated plasma model.

  • Absorption half-life 0.315187 h is mathematically reconstructed to place the peak at 1.3 h; it was not directly measured.
  • One 1 mg input has a peak of 1 relative unit, independent of the example dose. Linear scaling and repeated-dose addition are illustrative.
  • The source peak 9.2 ng/mL and AUC 53 ng·h/mL are steady-state observations, not single-dose calibration.
  • Saturable enzyme binding and low-dose nonlinearity are omitted; the curve cannot estimate DHT, treatment benefit or a personal stopping interval.
Model details and sources
Isotretinoin (Accutane) 21 hours
Relative model

Fed conventional-capsule label study: single 80 mg in 74 healthy adults, parent isotretinoin plasma Tmax 5.3 h and terminal half-life 21 h. Absorption is reconstructed to match that peak time.

  • Absorption half-life 1.214334 h is inferred from peak timing and terminal half-life, not a measured absorption rate.
  • A single 1 mg input peaks at 1 relative unit; dose scaling and repeated-dose addition are mathematical illustrations.
  • A peak-calibrated one-compartment fit would imply AUC 31108 ng·h/mL, versus the source 10004; absolute calibration is therefore withheld.
  • Distribution, enterohepatic recycling and active metabolites are omitted. The curve does not measure acne benefit or determine a pregnancy-safe waiting interval.
  • The formulation/food context is fixed; this is not an Absorica, Absorica LD or fasting-exposure model.
Model details and sources
Enclomiphene Citrate 10 hours
Relative model

About 10 h elimination half-life from the 14-day oral-citrate trial; 2.5 h peak is an assumed midpoint of the 2–3 h range described in the 6-week trial and FDA review.

  • Absorption half-life 0.570595 h is inferred from the selected 10 h tail and 2.5 h peak, not a published fitted rate.
  • One 1 mg declared citrate input peaks at 1 relative unit. This normalization is not a citrate-to-base conversion.
  • Dose-proportional scaling and repeated-dose addition are mathematical conveniences: observed drug exposure was not proportional across doses.
  • The 6-week study drug curve cannot be reused as a single-dose absolute calibration; no Cmax is invented.
  • Metabolites, CYP2D6 variability and hormonal feedback are not modeled. The drug curve does not estimate total testosterone, estradiol or sperm count.
Model details and sources
Ivermectin (oral tablets) 18 hours
Relative model

US oral-tablet label: approximate 18 h plasma half-life and peak around 4 h after a fasting single 12 mg dose. These are simplified label timing values, not parasite-killing duration.

  • Absorption is inferred to reproduce the stated peak time with the stated terminal rate; this is not a fitted source absorption parameter.
  • A single 1 mg input has a peak of 1 relative unit by definition. Repeated-dose addition and linear scaling are mathematical assumptions; the example dose does not calibrate the curve.
  • Different studies and fed states give substantially different timing/exposure. The model does not represent topical ivermectin or animal products.
  • Matching label peaks and 18 h tail in one compartment overstates the matched FDA AUC 0–72; no absolute amplitude is assigned.
Model details and sources
Methylene Blue (oral) 18.3 hours
Relative model

Walter-Sack 2009 Table 1: mean oral plasma half-life 18.3 h and Tmax 2.2 h after a single 500 mg aqueous solution in healthy adults. Transfer to other oral products or much lower doses is an assumption.

  • Absorption is inferred to reproduce the stated peak time with the stated terminal rate; this is not a fitted source absorption parameter.
  • A single 1 mg input has a peak of 1 relative unit by definition. Repeated-dose addition and linear scaling are mathematical assumptions; the example dose does not calibrate the curve.
  • Aqueous solution timing is not a validated model of capsules, lozenges, extended-release tablets or IV treatment.
  • Plasma, whole-blood and reduced/oxidized species results are not interchangeable. No conversion from dye color or drops to a blood concentration is made.
  • Peak-normalizing 3905 ng/mL at 18.3 h predicts more than twice the observed AUC∞ 51171 ng·h/mL, so this entry intentionally has no absolute calibration.
Model details and sources
Eplerenone (Inspra) 4.6 hours
Reconstructed estimate

One fasting INSPRA 50 mg reference arm: mean terminal half-life 4.56 h and median peak time 1.75 h.

Model details and sources
Mirabegron ER (Myrbetriq) 31.9 hours
Relative model

Iitsuka 2014 Table 2 Study 2: single fasting 50 mg OCAS tablet in 12 healthy Japanese men, mean terminal half-life 31.9 h and peak time 3.5 h. These source timings are used as a simplified scenario.

  • Absorption is inferred to reproduce the stated peak time with the stated terminal rate; this is not a fitted source absorption parameter.
  • A single 1 mg input has a peak of 1 relative unit by definition. Repeated-dose addition and linear scaling are mathematical assumptions; the example dose does not calibrate the curve.
  • The source curve has a faster distribution phase plus a slow terminal tail. A one-compartment curve cannot match its peak and overall exposure; no absolute amplitude is assigned.
  • Actual oral exposure increases more than proportionally with dose. Linear relative scaling is only mathematical and must not be read as a blood-exposure ratio.
  • The generic label terminal half-life is about 50 h in patients; that is a different source context and is not mixed into this study-specific timing.
  • Food, sex, organ function and formulation affect exposure. This model does not represent immediate-release products or Myrbetriq granules.
Model details and sources
Cagrilintide 7.3 days
Reconstructed estimate

Nielsen2026 Table5 normal hepatic function: half-life174h and Tmax45h.

Model details and sources
Dulaglutide (Trulicity) 3.5 days
Reconstructed estimate

NCT01667900, Part A Day1,1.5mg group: median Tmax48h; geometric mean half-life82.9h.

Model details and sources
Pramlintide (Symlin) 48 min
Reconstructed estimate

Symlin label Table5: Tmax21minutes=.35h; half-life48minutes=.8h.

Model details and sources
Survodutide 4.8 days
Reconstructed estimate

Table4 first0.6mg dose Tmax23.7h; Results3.3 reports DG2 terminal half-life114h after repeated/escalated dosing.

Model details and sources
5-Amino-1MQ 12 hours
Relative model

Retained only as an explicit mathematical timing assumption; not a verified human half-life. No concentration-unit amplitude is supported.

  • Absorption half-life is assumed to be one quarter of the slower timescale (3 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Human route/formulation, systemic exposure, absorption and terminal kinetics were not established by the reviewed source. Cell permeability cannot supply oral bioavailability.
Model details and sources
Adipotide 58 min
Relative model

Retained only as an explicit mathematical timing assumption; not a verified human half-life. No concentration-unit amplitude is supported.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.24 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • No matched human concentration/time endpoint was verified. Do not translate the primate experimental regimen into human calibration.
Model details and sources
HGH Fragment 176-191 (AOD-9604) 12 hours
Relative model

Retained only as an explicit mathematical timing assumption; not a verified human half-life. No concentration-unit amplitude is supported.

  • Absorption half-life is assumed to be one quarter of the slower timescale (3 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Product identity, free-base/salt basis and route must be specified before absolute calibration. The stored 12-hour timing is unsupported, not a source-backed elimination half-life.
Model details and sources
MGF (Mechano Growth Factor) 29 min
Relative model

Retained only as an explicit mathematical timing assumption; not a verified human half-life. No concentration-unit amplitude is supported.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.12 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not substitute IGF-1, intact IGF1Ec or tissue-expression time courses for isolated MGF blood kinetics.
Model details and sources
PEG-MGF (Pegylated MGF) 19.2 hours
Relative model

Retained only as an explicit mathematical timing assumption; not a verified human half-life. No concentration-unit amplitude is supported.

  • Absorption half-life is assumed to be one quarter of the slower timescale (4.8 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • PEG size, conjugation and product identity are not specified. A PEG-containing delivery scaffold does not establish the circulation kinetics of a PEG-MGF conjugate.
Model details and sources
IGF-1 DES 29 min
Relative model

Retained only as an explicit mathematical timing assumption; not a verified human half-life. No concentration-unit amplitude is supported.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.12 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Tracer radioactivity, parent analyte and human administered-product exposure are not interchangeable. Retained timing is an assumption.
Model details and sources
IGF-1 LR3 12 hours
Relative model

Retained only as an explicit mathematical timing assumption; not a verified human half-life. No concentration-unit amplitude is supported.

  • Absorption half-life is assumed to be one quarter of the slower timescale (3 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Potency or duration of biological response is not an elimination half-life. No human product/route Cmax was verified.
Model details and sources
CJC-1295 with DAC 5.8 days
Relative model

30µg/kg cohort half-life5.8d from Teichman figure2;1.25h is midpoint assumption within reported1–1.5h peak window, not measured cohort mean.

  • The faster rate is inferred to match the 1.25 h source-scoped peak time; absorption half-life 0.12313185117369821 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • No study cohort mean weight recovered, so30µg/kg cannot become2mg or2.1mg without an explicit assumed reference weight.
  • AUCt is to last sampling, not infinite; exact last measurable time differs by subject. Do not compare it as if AUCinf.
  • DAC albumin-bound analyte assay and formulation are not interchangeable with free no-DAC GRF.
  • With139.2h tail and1.25h assumed Tmax, a simple peak-normalized Bateman is unsuitable for reproducing the observed early/late profile.
Model details and sources
CJC-1295 without DAC (Modified GRF 1-29) 29 min
Relative model

Retained historical illustrative timing assumption only; no validated human SC half-life recovered for this specific form.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.12 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Identity/salt ambiguity persists; no-DAC is not the DAC molecule with a different schedule.
  • No measured SC F,Tmax or concentration amplitude supports the current curve.
  • Relative output must explicitly identify timing assumption.
Model details and sources
Ipamorelin 2 hours
Relative model

Terminal half-life after15min IV infusion in healthy men; extrapolated to SC shape only. SC absorption remains assumed.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.5 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Vss is not automatically central volume in a two-compartment model.
  • Do not use GH Cmax, EC50 or production rate as ipamorelin concentration.
  • No substantiated human SC F or matched Cmax/ref-dose/Tmax recovered.
Model details and sources
Sermorelin 4 min
Relative model

Soule1994 human IV disappearance half-time4.3±1.4min; using it for SC is a route extrapolation, not a measured SC terminal value.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.017916666666666668 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Historical Geref11–12min and6%SC figures were located only via secondary mirrors, not a primary label; not silently adopted.
  • No matched SC concentration endpoint set recovered; do not borrow GH peaks.
Model details and sources
Tesamorelin 11 min
Relative model

Single EGRIFTA WR1.28mg SC dose in healthy subjects, same label study. Original2mg Egrifta26/38min values came after14days, not this single-dose WR formulation.

  • The faster rate is inferred to match the 0.15 h source-scoped peak time; absorption half-life 0.06452204183467626 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Peak/Tmax/tail reconstruction gives AUC1.7866ng·h/mL versus1.172reported (+52.4%); do not call all endpoints reproduced.
  • Either explicitly identify WR in model scope or keep generic formulation relative; never relabel saved2mg inputs as1.28mg.
  • No additional F multiplier because peak includes availability.
  • Source variability is large; means of endpoints need not define one typical individual curve.
Model details and sources
GHRP-2 33 min
Relative model

Pihoker 1998: terminal beta half-life in prepubertal children with short stature after 1 µg/kg IV over 1 min. Applying this to catalog SC scenarios extrapolates route and population.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.1375 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • No matched adult SC availability, Tmax or dose-calibrated peak recovered.
  • The pediatric IV 7.4 ng/mL peak must not be attached to a generic 0.1 mg SC dose.
  • A single compartment does not reproduce the source biexponential disposition.
Model details and sources
GHRP-6 2.5 hours
Relative model

Cabrales 2013: IV terminal half-life 2.5 ± 1.1 h; distribution half-life 7.6 ± 1.9 min. SC absorption was not measured.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.625 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • The study used larger weight-based IV exposures than typical catalog SC scenarios.
  • No SC availability, Cmax or Tmax was established.
  • This does not model GH concentration.
Model details and sources
MK-677 (Ibutamoren) 5 hours
Relative model

Historical illustrative assumption. The regulator review found no detailed clinical PK supporting a human plasma half-life. A 24 h GH/IGF effect duration is not a plasma half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (1.25 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not turn dog bioavailability into human availability.
  • No retrieved human paired parent-drug dose, Cmax and Tmax support an absolute scale.
  • Future product-specific LUM-201 work may provide calibration; no complete verified candidate was recovered here.
Model details and sources
ACE-031 13 days
Relative model

Illustrative midpoint of 12.5 days within the reported human 10–15 day range; not a published cohort mean.

  • Absorption half-life is assumed to be one quarter of the slower timescale (75 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not infer a fixed absolute dose from mg/kg without an explicit reference weight.
  • Native ActRIIB and the Fc fusion are different molecules.
  • The proposed 300 h relative curve uses a range midpoint assumption; it predicts neither blood concentration nor muscle growth.
Model details and sources
AICAR 1.4 hour
Relative model

Dixon 1991: harmonic mean terminal phase of 1.4 h after IV infusion. SC absorption remains unknown.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.35 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • No matched human SC calibration was recovered.
  • The week-long radioactivity tail is not parent-acadesine elimination.
  • Vss is not central volume; a monoexponential absolute model cannot be inferred from it.
Model details and sources
EPO (Erythropoietin) 9.6 hours
Relative model

The historical 9.6 h value falls inside the 4–13 h IV CKD label range, but is not a verified SC estimate. SC timing varies with dose and population; label Tmax is 5–24 h.

  • Saved numerical amounts retain their original values. No conversion to milligrams or IU is established.
  • Absorption half-life is assumed to be one quarter of the slower timescale (2.4 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not reinterpret legacy stored amounts as mass or IU.
  • An IU conversion requires a separately verified serialization and migration contract.
  • One SC curve cannot represent all CKD, cancer, dialysis and healthy populations.
Model details and sources
HMG (Menotropin) 12 hours
Relative model

Proposed 12 h is the midpoint of the Menopur 11–13 h FSH half-life range during multiple dosing. Single-dose Tmax 17.9 h belongs to a different phase and must not be combined blindly.

  • Saved numerical amounts retain their original values. No conversion to milligrams or IU is established.
  • Absorption half-life is assumed to be one quarter of the slower timescale (3 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • FSH is not total menotropin, LH or hCG.
  • No IU-to-mass conversion is adopted; saved amounts must not be reinterpreted.
  • The proposed timing concerns the FSH component and multiple-dose study, not universal menotropin kinetics.
  • A future FSH model is feasible after dose-unit mapping, baseline handling and matched model-shape verification.
Model details and sources
Gonadorelin Acetate 4 min
Relative model

Human gonadorelin hydrochloride SmPC: rapid plasma hydrolysis with about 4 min half-life; SC/IV diagnostic formulation.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.016666666666666666 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Acetate preparations are not demonstrated bioequivalent.
  • The LH diagnostic response is not gonadorelin concentration.
  • SC peak and availability remain uncalibrated.
Model details and sources
Kisspeptin 28 min
Relative model

KP54 IV half-life is about 27.6 min; KP10 is about 3.8–4.1 min. Neither establishes SC absorption for the generic product.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.115 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Clarify peptide identity beside the curve; do not silently treat all kisspeptin as KP54.
  • Absolute calibration requires a known peptide length, analyte, route, assay and reference dose.
  • This curve does not include endogenous peptide or predict gonadotropin responses.
Model details and sources
BPC-157 17 min
Relative model

Rat IM 100 microgram/kg saline BPC157: half-life 17.1 min, Tmax 3 min. The 2-person human IV pilot reports safety biomarkers, not peptide concentration calibration.

  • The faster rate is inferred to match the 0.05 h source-scoped peak time; absorption half-life 0.009976653025332967 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Animal IM timing does not establish human SC absorption or elimination.
  • Do not use total radiolabel half-life: the radiolabel includes metabolites and recycled amino acids.
  • Rat/dog Cmax must not be scaled into a human blood estimate.
Model details and sources
TB-500 (Thymosin Beta-4) 1.9 hours
Relative model

Ruff 2010:40 healthy volunteers, single 42–1260 mg IV then daily 14 days; dose-dependent half-life. The legacy 1.92 h is not a verified SC half-life.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.48 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Product sequence and route are unresolved for a generic TB-500 entry.
  • Do not transplant the full-length IV peak or half-life to the 7-residue fragment.
Model details and sources
TB-500 Fragment 58 min
Relative model

The 2024 study examines human-serum/enzyme incubations and rat urine. Metabolite detection to 72 h is not the parent plasma half-life; legacy 0.96 h remains an assumption.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.24 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • No human parent-peptide systemic calibration established in reviewed sources.
  • Ac-LKKTE wound-assay activity is a metabolite effect, not a blood exposure endpoint.
Model details and sources
Thymosin Alpha-1 2 hours
Relative model

Rost 1999: nine Caucasian volunteers,900 microgram/m² SC, three-way formulation crossover, single and 5 day administration; Tmax 1–2 h, half-life<3 h. Use 2 h/1.5 h as explicitly inferred representative timing, not a reported fitted parameter pair.

  • The faster rate is inferred to match the 1.5 h source-scoped peak time; absorption half-life 0.6075545274580504 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Zadaxin/Timosina/Talpha 1-HLR show different exposure.
  • The 63 ng/mL at 1.6 mg value is present in a 2024 review but primary product/cohort linkage was not established in this pass.
  • Apparent volumes/clearance already include F.
Model details and sources
ARA-290 (Cibinetide) 20 min
Relative model

PKARA: healthy male crossover;4 mg SC n 5, Cmax 2.0±0.7 ng/mL, Tmax 6 min, AUC148 ng·min/mL, terminal~20 min. Later clinical paper summarizes~3 ng/mL; do not silently replace the original cohort mean.

  • The faster rate is inferred to match the 0.1 h source-scoped peak time; absorption half-life 0.024645183502450502 h is a mathematical shape parameter, not separately measured.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Source Cmax 2 ng/mL and AUC148 ng·min/mL imply an AUC/peak ratio 1.233 h; a 20 min/6 min one-compartment curve gives about 71 ng·min/mL, substantially below 148.
  • Reported 2/4/6 mg SC peaks 1.6/2.0/7.4 ng/mL are not proportional across all tested amounts.
  • Bioavailability and volume must not be invented.
Model details and sources
SS-31 (Elamipretide) 3.9 hours
Model-derived

Derived from the published model rates. Elamipretide hydrochloride solution, 40 mg active moiety in 0.5 mL in the source comparator.; Subcutaneous abdomen. Fixed tabulated SPICP-105 parameters from 41 healthy participants; no particular reference age or weight is asserted..

Model details and sources
MOTS-c 12 hours
Relative model

Legacy 12 h has no administered-human timing support in reviewed sources.

  • Absorption half-life is assumed to be one quarter of the slower timescale (3 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not substitute the modified analog CB4211 or engineered R13A-MOTS-c for native MOTS-c.
  • Endogenous biomarker concentrations cannot calibrate an entered exogenous dose.
Model details and sources
Dermorphin 41 min
Relative model

Replace legacy 0.48 h with the reported horse IM terminal 0.68 h only as an explicitly animal-derived relative scenario. IV distribution 0.09 h and terminal 0.76 h are distinct. Do not apply the horse 47–100%IM bioavailability to people.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.17 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not borrow data for Lys 7-dermorphin fluorescent probes or dermorphin-ranatensin hybrids.
  • A human intrathecal dose cannot calibrate a blood curve.
Model details and sources
Cerebrolysin 58 min
Relative model

Legacy 0.96 h is an assumed display timescale, not measured mixture clearance.

  • Absorption half-life is assumed to be one quarter of the slower timescale (0.24 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • The 215.2 mg/mL product concentration is preparation mass, not peptide Cmax.
  • Do not assign a universal molecular weight to the complex or reinterpret saved milligram amounts as mL.
Model details and sources
Cartalax 4.1 hours
Relative model

Legacy 4.08 h is an unverified scenario timescale; no concentration-time sampling in the inspected experiment.

  • Absorption half-life is assumed to be one quarter of the slower timescale (1.02 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • In-vitro assay concentration is not Cmax.
  • Cartilage-patent claims do not establish a clinically measured half-life.
Model details and sources
Prostamax 4.1 hours
Relative model

Legacy 4.08 h is an assumed timescale; the 0.05 ng/mL tissue-culture concentration is not a plasma peak.

  • Absorption half-life is assumed to be one quarter of the slower timescale (1.02 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not mistake cultured human donor cells for an administered-human study.
  • No route-matched human PK established in reviewed sources.
Model details and sources
Testagen 4.1 hours
Relative model

Legacy 4.08 h is unverified; fluorescent-peptide uptake does not establish native peptide elimination.

  • Absorption half-life is assumed to be one quarter of the slower timescale (1.02 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not equate material-science KEDG adsorption or DNA binding with systemic exposure.
  • No human exogenous-peptide calibration established in reviewed sources.
Model details and sources
Vesugen 4.1 hours
Relative model

Legacy 4.08 h is an assumption; no timed parent-peptide plasma data in inspected originals.

  • Absorption half-life is assumed to be one quarter of the slower timescale (1.02 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not substitute activity duration or donor-cell aging endpoints for elimination.
  • No route-specific F established.
Model details and sources
L-Carnitine (Injectable) 17.4 hours
Relative model

Label apparent terminal half-life of 17.4 h is from uncorrected plasma after 20 mg/kg IV over 3 min; distribution half-life is 0.585 h. Endogenous baseline affects the terminal estimate. This is not a verified IM/SC tail.

  • Absorption half-life is assumed to be one quarter of the slower timescale (4.35 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Do not borrow an oral steady-state peak for injection.
  • Label clearance of 4 L/h and terminal 17.4 h include baseline and do not suffice for an exogenous-only model.
  • The SC/IM 70% availability assumption is unsupported.
Model details and sources
SLU-PP-332 4.8 hours
Relative model

Retained only as an explicit mathematical timing assumption; not a verified human half-life. No concentration-unit amplitude is supported.

  • Absorption half-life is assumed to be one quarter of the slower timescale (1.2 h); it is not a measured absorption parameter.
  • A single 1-unit input has a peak of 1 relative unit; scaling and repeated-dose addition are mathematical assumptions. This normalization is independent of the example dose.
  • Reviewed evidence does not establish the catalog’s 4.8-hour human half-life or bioavailability. No absolute human Cmax was verified.
Model details and sources

Legacy detection ranges are withheld pending source and assay verification. Half-life does not establish a negative-test date. Read the detection evidence limitations. Educational use only — not medical advice.