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Growth hormone

GHRP-2 (pralmorelin): Effects, Evidence and Risks

Research use only: GHRP-2 (Pralmorelin) is not approved as a medicine in Germany or the EU (approvals exist only in individual countries outside the EU). It is offered as a research substance labelled “for research purposes only – not for use in humans or animals”. This page summarises the state of research and is not a recommendation to use it.

Also known as Pralmorelin, GHRP-2, GPA-748, KP-102, GHRP Kaken 100.

StatusApproved outside the EU only
EvidenceSmall human studies
Drug classSynthetic hexapeptide, ghrelin receptor agonist (GH secretagogue) · injection or IV
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We only show doses for approved medicines according to the prescribing information – in the calculator.

What is GHRP-2 (pralmorelin)?

GHRP-2 is a synthetic peptide that binds the ghrelin receptor (GHS-R1a) in the pituitary and triggers a strong release of growth hormone (GH). It was the first drug of this class to be used clinically.

How well studied is GHRP-2 (pralmorelin)?

In Japan, pralmorelin is used as a diagnostic agent to test for growth hormone deficiency. Therapeutic uses (GH deficiency, short stature) did not progress beyond phase II; there are no solid human data on muscle gain, fat loss or anti-aging.

What side effects and risks does GHRP-2 (pralmorelin) have?

Reliably causes strong hunger and can raise cortisol and prolactin as well as GH. Persistently elevated GH/IGF-1 levels can promote fluid retention, joint pain and worse blood sugar control. Long-term safety outside diagnostic use has not been studied; grey-market products are untested for purity and sterility.

Is GHRP-2 (pralmorelin) approved in Germany?

In short: no – only outside the EU. Approved only in Japan as a diagnostic agent; not approved in the EU/Germany. Prohibited in sport (WADA S2, GH-releasing peptides); GH secretagogues may also fall under the German Anti-Doping Act (AntiDopG). Products sold as “research chemicals” are not quality-controlled.

Sources

Note: We deliberately do not list any doses here. For approved medicines, your doctor sets the dose; for unapproved substances there is no reliable information.