Canada Peptide Guide
Home › Weight loss & GLP-1 › Semaglutide
Weight loss & GLP-1

Semaglutide

Authorized in Canada (prescription) Evidence 4/4
Semaglutide peptide structure illustration (abstract amino-acid chain)
In short

A GLP-1 receptor agonist peptide drug for type 2 diabetes and chronic weight management. In Canada it is a prescription drug, and generic versions were authorized in 2026.

Reviewed November 10, 2026 · 6 sources cited below

Also known asOzempic, Wegovy, Rybelsus; generics since 2026
CategoryWeight loss & GLP-1
Canada statusAuthorized in Canada (prescription)
Human evidence Strong: large randomized human trials
Last reviewedNovember 10, 2026

How strong is the human evidence?

Strong: large randomized human trials. How we rate evidence

What is Semaglutide?

Semaglutide is a modified version of the gut hormone GLP-1. It is one of the peptide drugs Health Canada names as authorized and widely prescribed.

Brand products in Canada include Ozempic and Rybelsus (type 2 diabetes) and Wegovy (chronic weight management). Health Canada authorized the first generic semaglutide (Dr. Reddy's, a generic of Ozempic) on April 28, 2026, and the first generic for weight loss (Apotex's Sevmia, a generic of Wegovy) on June 29, 2026.

Is Semaglutide legal in Canada?

Authorized prescription drug. Authorized products carry an 8-digit DIN; you can confirm any product in the Drug Product Database. Products sold online as "research semaglutide" without a DIN are not authorized.

See how Health Canada regulates peptides.

What the research shows

  • STEP 1 (Wilding et al., NEJM 2021): in 1,961 adults with overweight or obesity and no diabetes, average weight change at 68 weeks was −14.9% with semaglutide vs −2.4% with placebo, alongside lifestyle counselling.

What it doesn't show

  • Trial results apply to the authorized product used under medical supervision, not to unregulated powders of unknown quality.
  • Trials studied ongoing treatment; the results don't tell you what happens to weight after stopping.

Common questions

Is semaglutide a peptide?

Yes. It is a peptide drug (a modified GLP-1 analog) and Health Canada lists it among authorized peptide drugs.

Is there generic semaglutide in Canada?

Yes. Health Canada authorized generic semaglutide starting April 28, 2026, including a generic of Wegovy (Sevmia) on June 29, 2026. Check the DIN in the Drug Product Database for any specific product.

Is it legal to buy semaglutide online in Canada?

Only as an authorized prescription product from a licensed pharmacy. Health Canada advises buying prescription drugs only from licensed pharmacies and checking for a DIN.

Sources

  1. Health Canada — Peptides: Overview
  2. Health Canada (Apr 28, 2026): First generic semaglutide authorized
  3. Health Canada (Jun 29, 2026): First generic semaglutide for weight loss (Sevmia)
  4. Health Canada Drug Product Database (searched Nov 10, 2026)
  5. Wilding JPH et al. Once-weekly semaglutide in adults with overweight or obesity. NEJM 2021 (STEP 1)
  6. Health Canada advisory RA-81874 (Apr 9, 2026): Think twice before injecting peptides bought online

Related

Tirzepatide peptide illustrationTirzepatideA dual GIP/GLP-1 receptor agonist. Health Canada has authorized Mounjaro for type 2 diabetes and Zepbound for chronic…Authorized in Canada (prescription)Liraglutide peptide illustrationLiraglutideAn older, once-daily GLP-1 receptor agonist. Victoza (type 2 diabetes) and Saxenda (weight management) are authorized…Authorized in Canada (prescription)Retatrutide peptide illustrationRetatrutideAn investigational triple-hormone (GIP, GLP-1, glucagon) receptor agonist from Eli Lilly. It is not approved anywhere,…Not authorized in Canada

All weight loss & glp-1 peptides A–Z