Legal status · Canada
Is Leptin legal in Canada?
Written by Aaron CuhaReviewed Sep 2026
Direct answer
Yes. Leptin is an approved medicine in Canada. Its legal category is "Health Canada 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, 6 completed human trials are cited on its profile.
- People given it
- 844
- Found nothing
- 0
Legal category
Health Canada approved, prescription only
Myalepta, Chiesi, Drug Identification Numbers (DINs) 02544555, 02544563 and 02544571. On the market since 2024. Schedule D (a biologic, a drug made from living cells).
Reviewed Sep 2026. This is a legal category, not legal advice.
A "research use only" label on a vial does not make it legal to use on people.
Leptin in Canada at a glance
| Legal category | Health Canada approved, prescription only |
|---|---|
| Note | Myalepta, Chiesi, Drug Identification Numbers (DINs) 02544555, 02544563 and 02544571. On the market since 2024. Schedule D (a biologic, a drug made from living cells). |
| Health Canada approval status | Approved by Health Canada for the use on its label |
| Studies in people | 7 of 10 sources on the profile |
| Reviewed | Sep 2026 |
The legal category and note come from the Leptin profile. We checked them against Health Canada, Health Products and Food Branch (Health Canada) listings on the reviewed date.
What this means
- 01
Health Canada has approved Leptin for at least one use named on its label. So a proper pharmacy-grade product exists in Canada, and pharmacies hand it out on prescription.
- 02
Approval covers only the uses named on the label. Any other use is a prescriber's call. The approval itself does not cover it.
- 03
Unlicensed vials sold online, including those labeled "research use only", are not the approved product. The approval does not cover them.
What Leptin is
Leptin is a hormone your fat makes. It tells the brain how much energy you have stored. For the rare people born without it, getting it back changes their lives. In ordinary obesity, a 1999 study of 127 people found only small weight loss, and no drug came of it. A version called metreleptin is approved for a rare disease where the body loses its fat, with the FDA's strongest warning on the label.
Leptin comes from fat cells. The more fat you carry, the more leptin you make.
How it works: What we know in people comes from those born without leptin and from giving it back. Leptin docks on a receptor on the brain cells that control hunger.
Approval history: Metreleptin (Myalept) was FDA-approved on 24 February 2014 (BLA 125390, Chiesi). It is used alongside diet to treat problems caused by too little leptin in people with generalised lipodystrophy, a rare condition where the body cannot store fat normally, whether they were born with it or got it later. Listed as Prescription in the FDA drug database (Drugs@FDA) on 11 September 2026. It carries the FDA's strongest (boxed) warning, for antibodies that block metreleptin and for T-cell lymphoma, a blood cancer. It is only handed out through a restricted safety programme (REMS). It is not for use in obesity. Natural leptin is not a product.
How Health Canada treats this kind of product
Allows a drug to be sold by issuing a Notice of Compliance and a Drug Identification Number (DIN). A compound that is not allowed for sale cannot legally be sold for use in people. Bringing in prescription drugs for your own use is also limited.
The legal category above is how The Longevity Archive reads Health Canada, Health Products and Food Branch listings for Leptin 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.
Leptin in sport and the military
Whether Leptin is banned in sport is set by the World Anti-Doping Code and by military rules, not by its legal status in Canada. Before you compete or get tested, look up Leptin 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.
Leptin in other countries
United States
ApprovedFDA-approved, prescription only
Is Leptin legal in the United States?United Kingdom
Prescription routePrescription only; check current MHRA status
Is Leptin legal in the United Kingdom?Australia
Prescription routePrescription only; check current TGA status
Is Leptin legal in Australia?Frequently asked questions
Is Leptin legal in Canada?
Yes. Leptin is an approved medicine in Canada. Its legal category is "Health Canada 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, 6 completed human trials are cited on its profile. Note: Myalepta, Chiesi, Drug Identification Numbers (DINs) 02544555, 02544563 and 02544571. On the market since 2024. Schedule D (a biologic, a drug made from living cells).
Can I buy Leptin in Canada?
Only with a prescription. In Canada, Leptin has the legal category "Health Canada approved, prescription only". Pharmacies hand it out with a prescription, for the use it is approved for. Buying it from unlicensed sellers online, or as a "research chemical", is outside that system. You get none of the protection the regulator gives. Note: Myalepta, Chiesi, Drug Identification Numbers (DINs) 02544555, 02544563 and 02544571. On the market since 2024. Schedule D (a biologic, a drug made from living cells).
Is Leptin Health Canada approved?
Yes, for the use on its label. In Canada, Leptin has the legal category "Health Canada approved, prescription only". For comparison, its US FDA status is: Metreleptin (Myalept) was FDA-approved on 24 February 2014 (BLA 125390, Chiesi). It is used alongside diet to treat problems caused by too little leptin in people with generalised lipodystrophy, a rare condition where the body cannot store fat normally, whether they were born with it or got it later. Listed as Prescription in the FDA drug database (Drugs@FDA) on 11 September 2026. It carries the FDA's strongest (boxed) warning, for antibodies that block metreleptin and for T-cell lymphoma, a blood cancer. It is only handed out through a restricted safety programme (REMS). It is not for use in obesity. Natural leptin is not a product.. On the evidence, 6 completed human trials are cited on its profile.
Related compounds in Canada
Full research profile
How Leptin works, the studies we cite, FDA status and the full legal summary are all on its compound profile.
Leptin profileThis page is general information about the legal status of Leptin in Canada, current as of Sep 2026. It is not legal advice. Legal status changes. For your own situation, check with Health Canada, Health Products and Food Branch or ask 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.