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Is PT-141 legal?

Written by Reviewed Sep 2026

MelanocortinStrong. At least two finished studies in people, and at least 1,000 people who took it. 4 completed trials, 2,355 people given it.
  • US: FDA-approved, prescription only
  • UK: Not widely licensed
  • AU: Not approved
  • CA: Not approved

The US comes first because most people ask about it. Each country has its own page. It names the agency, the law or rule, and what the legal category means in real life.

All four countries, side by side

What we listUnited States · FDAUnited Kingdom · MHRAAustralia · TGACanada · Health Canada
StatusApprovedNot approvedNot approvedNot approved
Legal categoryFDA-approved, prescription onlyNot widely licensedNot approvedNot approved
NoteNone recordedNone recordedNone recordedNone recorded
AgencyCheck FDA directlyCheck MHRA directlyCheck TGA directlyCheck Health Canada directly

US FDA status: FDA-approved (Vyleesi). Reviewed Sep 2026.

Country by country

Is PT-141 legal in the United States?

Yes. PT-141 is an approved medicine in the United States. Its legal category is "FDA-approved, prescription only". The approval covers the use on its label. It is given out on prescription, not sold over the counter. Products labeled "research use only" are not covered by that approval, and that label does not make them legal to use in people. On the evidence, 4 completed human trials are cited on its profile.

The full United States answer

Is PT-141 legal in the United Kingdom?

No. PT-141 is not an approved medicine in the United Kingdom. Its legal category is "Not widely licensed". Nothing that contains it is allowed for any use in people. Vials labeled "for research use only" get no exception: that label does not make them legal to use in people. On the evidence, 4 completed human trials are cited on its profile.

The full United Kingdom answer

Is PT-141 legal in Australia?

No. PT-141 is not an approved medicine in Australia. Its legal category is "Not approved". Nothing that contains it is allowed for any use in people. Vials labeled "for research use only" get no exception: that label does not make them legal to use in people. On the evidence, 4 completed human trials are cited on its profile.

The full Australia answer

Is PT-141 legal in Canada?

No. PT-141 is not an approved medicine in Canada. Its legal category is "Not approved". Nothing that contains it is allowed for any use in people. Vials labeled "for research use only" get no exception: that label does not make them legal to use in people. On the evidence, 4 completed human trials are cited on its profile.

The full Canada answer

PT-141 in sport and the military

Whether PT-141 is banned in sport is set by the World Anti-Doping Code and by military rules, not by its legal status. Before you compete or get tested, look up PT-141 by name on the Prohibited List, or look up a named product in Global DRO. Under the World Anti-Doping Code, category S0 bans, at all times, any drug-like substance that meets two tests. No other section of the List covers it. And no government health regulator anywhere has a current approval for it as a treatment in people. Many substances that are approved somewhere are banned by name in another section. So approval does not mean a substance is allowed in sport.

The rules you compete or serve under decide this, not this page.

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General information, current as of Sep 2026. Not legal advice. Legal status changes. For your own situation, check with the agency or a lawyer. Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use. Sellers named on the price pages are ranked by certificate tier, then price, and any affiliate income is disclosed there. Naming a seller is not a recommendation to buy or use anything.