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MK-677 (Ibutamoren)

Ibutamoren · MK677 · MK 677 · Nutrobal

Orally active growth hormone secretagogue (ghrelin receptor agonist) that elevates GH and IGF-1; the non-peptide counterpart to injectable GHRPs.

Pharmacokinetic summary

Model tier
Simple (t½ + F, Tmax estimated)
Half-life
0.2 days
Bioavailability
60%
Typical dose
10–25 mg