GHRP-2
GHRP-2, a peptide. GHSR-1a agonist with dual ghrelin-mimetic activity — drives GH release AND raises cortisol/prolactin modestly (less… Subcutaneous half-life 0.6 h.
GHSR-1a agonist with dual ghrelin-mimetic activity — drives GH release AND raises cortisol/prolactin modestly (less selective than ipamorelin). Historically the Rx GH-stimulation-test agent in Japan.
ROUTE CAVEAT: the 0.55 h half-life is verbatim — Pihoker 1998 (PMID:9543135), "t(1/2beta) = 0.55 +/- 0.14 h" — but that study dosed intravenously in ten prepubertal children, not subcutaneously in adults, and its own closing line concedes that extravascular data do not yet exist. The same paper also gives an apparent volume of 0.32 +/- 0.14 L/kg, not stored here because the route does not match.
Pharmacokinetics
- Subcutaneous — t½ 33 min
Related compounds
- Ipamorelin — synergistic
Sources: PMID:9879640, PMID:9092793, PMID:9543135