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How do you spot fake Ozempic or “research peptide” GLP‑1s in Canada?

What Health Canada has warned about, why compounded semaglutide isn’t allowed, and how to check the DIN on any pen in two minutes.

GLP Guidebook teamPublished 12 Oct 20268 min read15 sourcesWritten from published sources

Written for Canada. Reading from India? India version

The short answer

Check the 8-digit DIN on the box in Health Canada’s Drug Product Database, and fill prescriptions only at a licensed pharmacy. Health Canada warned in January 2026 about fake and unauthorized Ozempic and Mounjaro sold in stores and online. Injectable “peptides” such as tirzepatide and retatrutide sold online are illegal in Canada.

Key takeaways

  • Health Canada’s advisory, updated 21 January 2026, warns of fake and unauthorized GLP‑1 products like Ozempic and Mounjaro sold in stores and online.1
  • In August 2025, Health Canada listed more than 40 unauthorized injectable peptides, including tirzepatide and retatrutide, were sold through one company’s website.2
  • Retatrutide is not approved in Canada: Health Canada’s database had no retatrutide product on 12 October 2026.3
  • Health Canada said in June 2025 that, outside rare patient-specific cases, making “compounded” semaglutide without a shortage counts as unlicensed manufacturing.4
  • Every approved product has an 8-digit DIN that you can look up in Health Canada’s Drug Product Database.1,5
Before you go further
  • GLP‑1 medicines are prescription drugs in Canada. Nothing here is a reason to start, stop or switch one.6
  • We name brands and official prices as facts. We don’t recommend, rank or link to any brand, pharmacy, clinic or program.
  • For weight management, Health Canada has approved Wegovy, Zepbound and Saxenda, and the generic Sevmia. Ozempic and Mounjaro are approved for type 2 diabetes.7,6
  • Trial results are averages. Some people lose much less, and every benefit comes with risks: see our side effects guide.
On this page
  1. What has Health Canada warned about?
  2. What are “research peptide” GLP‑1s?
  3. What can be wrong with a fake or unauthorized product?
  4. How do I check a DIN?
  5. Is compounded semaglutide allowed in Canada?
  6. What should I do if I bought or used one?
  7. Questions people ask
  8. How we researched this
  9. Sources

What has Health Canada warned about?

Fake and unauthorized GLP‑1 products sold in stores and online, sometimes with misused official logos and fake endorsements.1

The advisory, last updated on 21 January 2026, says these products “have not been assessed by Health Canada for safety, effectiveness, or quality”. Its advice: “Only buy prescription drugs from a licensed pharmacy” and “Do not buy or use unauthorized products.”1

The Canadian Press reported they were also promoted through social media ads.8 Health Canada says some websites and ads “misuse official Health Canada logos and display fake endorsements”.1,8

What are “research peptide” GLP‑1s?

Powders or vials of tirzepatide, retatrutide and similar compounds sold online without a prescription. Health Canada says selling them is illegal.2

In August 2025, Health Canada warned about more than 40 unauthorized injectable peptides sold through one company’s website, including tirzepatide and retatrutide. “Health Canada has not authorized any of the products that were seized or sold.”2

A “research” label doesn’t make an injection safe or legal. Tirzepatide is approved in Canada only as Mounjaro and Zepbound, from Eli Lilly.3 Retatrutide is not approved here at all.3

What can be wrong with a fake or unauthorized product?

The wrong amount of medicine or none, unlisted or dangerous ingredients, contaminants, and infection from a non-sterile injection.1,2

  • Wrong dose. Too much, too little or no active ingredient.1
  • Hidden ingredients. “Unlisted, dangerous or unknown ingredients.”1
  • Contaminants such as heavy metals or bacteria.1
  • Infection from injections that aren’t sterile, and allergic reactions.1,2

A real pen carries real risks too, listed below. A fake adds unknown ones on top.

RisksThe risks, in brief
  • Stomach effects. About 44 in 100 people on Wegovy 2.4 mg felt sick (nausea), against 16 in 100 on a dummy injection. On Zepbound 15 mg it was about 28 in 100, against about 9 in 100.9,10
  • Gallbladder. Gallstones affected about 16 in 1,000 people on Wegovy, against 7 in 1,000 on a dummy injection. An inflamed gallbladder affected about 6 in 1,000 on Zepbound, against 2 in 1,000.9,10
  • Pancreatitis (an inflamed pancreas): severe stomach pain that won’t go away, sometimes spreading to the back.9
  • Dehydration from vomiting or diarrhea can harm the kidneys.9
  • Thyroid and pregnancy. Not for anyone with a personal or family history of medullary thyroid cancer, or MEN 2. Canada’s obesity guideline advises against these medicines in pregnancy, while breastfeeding or when trying to conceive.10,7
Full detail in our side effects guide →
Get help now: call 911 or go to the nearest emergency department for severe stomach pain that won’t go away, with or without vomiting. It can be pancreatitis. Not sure? Call 811 to speak to a nurse in most provinces (Info-Santé 811 in Quebec).9,11
Free toolQuestions to take to your doctor or prescriber

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How do I check a DIN?

Find the 8-digit DIN on the label, search it in Health Canada’s Drug Product Database, and check the brand, company and status match.1,5

  • Find the DIN. It is the eight-digit Drug Identification Number on the label.1
  • Search it. Health Canada’s Drug Product Database lets you search by DIN.5
  • Check it matches. The brand name and company should match your pack. Status should normally read “Marketed”.5
  • No DIN, or no match? Don’t use it. Ask your pharmacist.
Brand (company)Example DINsStatus on 12 Oct 2026
Ozempic Novo Nordisk02471469, 02540258Marketed
Wegovy Novo Nordisk02528525, 02528541Marketed
Zepbound Eli Lilly02557509 (2.5 mg), 02557568 (15 mg)Marketed
Mounjaro KwikPen Eli Lilly02551950 (2.5 mg), 02552000 (15 mg)Marketed

A few examples from Health Canada’s Drug Product Database, not a full list, and not ranked. Search your own DIN; each strength has its own number.

Sources: the database records for semaglutide6 and tirzepatide.3

Is compounded semaglutide allowed in Canada?

Only in narrow cases. Health Canada says compounding is for when an approved drug can’t meet a patient’s need or is in shortage. In June 2025 it said some pharmacies were compounding GLP‑1s “in the absence of a shortage”.4,12

Health Canada’s June 2025 position says: “outside of unique case-by case patient specific scenarios, Health Canada considers this activity to be manufacturing.” It said it was taking compliance and enforcement action.4

In January 2025, an Alberta compounding pharmacy recalled semaglutide mixed with vitamin B6, “produced with an unauthorized active pharmaceutical ingredient”.13 Canada’s obesity guideline recommends against compounded medicines for weight loss.7

What should I do if I bought or used one?

Stop buying it, talk to a health professional, and report any side effect to Health Canada. For severe symptoms, call 911.2,14

Health Canada’s peptide advisory says to consult a healthcare professional if you used these products, and to dispose of them properly.2

Report side effects to the Canada Vigilance Program online or on 1-866-234-2345; “anyone can report”.14,9 If you think you took too much, call 1-844-POISON-X (1-844-764-7669), or 1-800-463-5060 in Quebec.15

Getting a real prescription safely: online GLP‑1 prescriptions in Canada.

Questions people ask

How can I tell if my Ozempic is real?

Check the 8-digit DIN on the label in Health Canada’s Drug Product Database, and make sure it came from a licensed pharmacy with a prescription.1,5

Is it legal to buy tirzepatide peptides in Canada?

No. Health Canada says injectable peptides such as tirzepatide and retatrutide sold online are unauthorized, and selling unauthorized drugs is illegal.2

Is retatrutide approved in Canada?

No. Health Canada’s Drug Product Database had no retatrutide product on 12 October 2026.3

Is compounded semaglutide legal in Canada?

Only in rare patient-specific cases or a shortage. In June 2025, Health Canada said some compounding was happening “in the absence of a shortage”, and it treats other compounding of semaglutide as manufacturing.4

How do I report a fake GLP-1?

Report side effects to the Canada Vigilance Program online or on 1-866-234-2345. Health Canada’s advisory also asks people to report suspected counterfeit products.14,9,1

How we researched this

We read Health Canada’s advisories on fake GLP‑1s (January 2026) and unauthorized peptides (August 2025), its June 2025 compounding position, and the Drug Product Database on 12 October 2026. We don’t name sellers, even ones Health Canada has acted against.

Before you move on

  • Fill prescriptions only at a licensed pharmacy.
  • Look up the DIN on every new pack.
  • Ignore ads that promise weight loss with a named drug.
  • Never inject a “research” or compounded product.
  • Report side effects and suspected fakes to Health Canada.
Questions for your doctorChoosing a provider safelySide effects and risks

More from the Canada blog

CACanadaCan you get Ozempic or Wegovy prescribed online in Canada?CACanadaWhich generic semaglutide pens were recalled in Canada in 2026, and what should you do?CACanadaWhich generic versions of Ozempic and Wegovy are approved in Canada?
About GLP Guidebook

The monthly Canada update

An independent guide to GLP‑1 medicines. We don’t sell medicines, take drug-company money, earn commissions or link to any provider. Once a month: Health Canada approvals, recalls, provincial coverage changes and official prices. How we write

Was this post easy to understand?

Sources

  1. Health Canada. Thinking about buying GLP-1 drugs like Ozempic or Mounjaro? Beware of fake or unauthorized products (public advisory: buy only from a licensed pharmacy; check the eight-digit DIN; risks; misused logos and fake endorsements). Updated 21 January 2026. Link
  2. Health Canada. Unauthorized injectable peptide drugs seized and sold in Canada (more than 40 peptides sold through a company website, including tirzepatide and retatrutide; “Selling unauthorized drugs is illegal in Canada”). Advisory, 1 August 2025. Link
  3. Health Canada. Drug Product Database: status records for tirzepatide products (Mounjaro, Mounjaro KwikPen, Zepbound) and searches for retatrutide and orforglipron (no products found). Searched 12 October 2026. Link
  4. Health Canada. Health Canada’s position on the unauthorized manufacturing of products sold as compounded GLP-1 receptor agonists. 2 June 2025 (shared by the Ontario College of Pharmacists). Link
  5. Health Canada. Drug Product Database search page (search by DIN, product name, company or active ingredient; status “Marketed”, “Approved”, “Cancelled” and others). Checked 12 October 2026. Link
  6. Health Canada. Drug Product Database: status records for every semaglutide product (Ozempic, Rybelsus, Wegovy, Plosbrio, Poviztra; generics from Dr. Reddy’s, Apotex, Aspen and Sandoz, and Sevmia). Searched 12 October 2026. Link
  7. Pedersen SD, Manjoo P, Dash S, Jain A, Pearce N, Poddar M. Canadian Adult Obesity Clinical Practice Guideline: Pharmacotherapy for Obesity Management in Adults, 2025 update. Obesity Canada, Version 3, 11 August 2025 (recommendations 1–13; six medicines approved for obesity; off-label use discouraged; pregnancy). PDF
  8. CP24 / The Canadian Press. Canadian health officials warn against counterfeit versions of Ozempic, Mounjaro (sold in stores, online and through social media advertisements). 21 January 2026. Link
  9. Novo Nordisk Canada. Wegovy (semaglutide injection) Product Monograph, date of authorization 2 October 2026 (indications; dose escalation; STEP 1–3 results and adverse reactions; pancreatitis, gallbladder, kidney and pregnancy warnings; storage). PDF
  10. Eli Lilly Canada. Zepbound (tirzepatide injection) Product Monograph, date of authorization 11 June 2026 (indications; “The ZEPBOUND multi-dose KwikPen contains 4 doses”; doses; SURMOUNT-1 and -2 results and adverse reactions; coadministration with Mounjaro not recommended; contraindications). PDF
  11. Heart and Stroke Foundation of Canada. Medical services by phone (811 in most provinces and Yukon; Info-Santé 811 in Quebec; other numbers in Manitoba, the Northwest Territories and Nunavut). Checked 12 October 2026. Link
  12. Alberta College of Pharmacy. Unauthorized compounding of semaglutide-containing products is not permitted (Health Canada policy POL-0051). 10 June 2025. Link
  13. Global News. Compounded semaglutide recall issued by Health Canada (an Alberta compounding pharmacy’s semaglutide with pyridoxine, “produced with an unauthorized active pharmaceutical ingredient”). 22 January 2025. Link
  14. Health Canada. Adverse reaction and medical device problem reporting (Canada Vigilance Program; “Anyone can report a side effect”). Checked 12 October 2026. Link
  15. Health Canada. Canada launches new toll-free 1-844-POISON-X number for poison centres (Quebec: 1-800-463-5060). News release, 20 March 2023. Link

Last checked 12 Oct 2026 · Next review due 12 Apr 2027 · Report an error

How this post was made. Written by the GLP Guidebook team from the sources above. It’s general information, not medical advice. Talk to your family doctor, nurse practitioner or pharmacist before starting, stopping or changing any medicine. We don’t sell, prescribe or recommend any brand or provider. How we write