Is Retatrutide with cagrilintide legal in the United Kingdom?

Two unapproved drugs still being tested, premixed by research chemical sellers. The usual vial is 12.5 mg retatrutide with 2.5 mg cagrilintide. Neither drug has finished testing. No pharmacy or clinic supplies the pair. The mix has never been tested in people or animals. Each drug alone has good early-stage data in people, and that is what makes this look safer than it is.

It is worth being exact about why this product carries so much risk. Both ingredients are real drugs in testing, with real studies.

How it works: Retatrutide presses three switches: GIP, GLP-1 and glucagon. The glucagon switch is what sets it apart.

Approval history: Neither part is approved anywhere in the world. Both are investigational, and no regulator has reviewed the combination.

Licenses medicines for sale in the UK. A compound without a licence to be sold (a marketing authorisation) is an unlicensed medicine. The law only lets it reach people through a prescriber, under the specials scheme (unlicensed medicines made for one patient's needs). It cannot be sold as a research product.

The legal category above is how The Longevity Archive reads Medicines and Healthcare products Regulatory Agency listings for Retatrutide with cagrilintide on the reviewed date. It is not a legal opinion. Rules change. Bringing a compound into the country, prescribing it and owning it can each be treated differently. Check with the agency before you act on anything here.

Check MHRA directly

Whether Retatrutide with cagrilintide is banned in sport is set by the World Anti-Doping Code and by military rules, not by its legal status in the United Kingdom. Before you compete or get tested, look up Retatrutide with cagrilintide 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.

• WADA Prohibited List
• Global DRO (check a named product)
• USADA (US athletes)
• Operation Supplement Safety (US service members)

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