This guide explains what generic semaglutide is, how it compares to brand-name medications such as Ozempic and Wegovy, and what to expect from your treatment.
Use this guide when you need to:
Understand what generic semaglutide is and how it works
Know how generic semaglutide compares to Ozempic and Wegovy
Check that generic semaglutide is safe and approved in Canada
Understand why generic semaglutide may cost less than branded medications
Understand how dosing works when your prescribed dose is higher than 1 mg per week
Prepare for switching between generic and branded semaglutide
Find out who manufactures generic semaglutide in Canada
What is generic semaglutide?
Generic semaglutide contains the same active ingredient as Ozempic and Wegovy. It is a once-weekly injection used together with a reduced-calorie diet and increased physical activity for chronic weight management.
A generic medication is a copy of a branded medication that contains the identical active ingredient, in the same amount, in a similar dosage form. Generic medications go through a Health Canada approval process to demonstrate that they work the same way in the body as the branded product.
Is generic semaglutide approved by Health Canada?
Yes. Generic semaglutide is approved by Health Canada. Approval requires the manufacturer to demonstrate to Health Canada that the generic product is pharmaceutically equivalent and bioequivalent to the branded reference product, meaning it contains the same active ingredient in the same amount and is absorbed by the body in the same way.
For more information about generic drug approval in Canada, see Health Canada's information on access to generic drugs.
How does generic semaglutide compare to Ozempic and Wegovy?
Generic semaglutide contains the same active ingredient as Ozempic and Wegovy. The active ingredient is what makes the medication work.
The differences between generic semaglutide and the branded products are:
Cost. Generic medications are often available at a lower price than branded medications.
Non-medicinal ingredients. The non-medicinal ingredients (such as preservatives and buffering agents) may differ between the generic and branded product. These ingredients do not affect how the medication works but are relevant if you have allergies or sensitivities. Check the leaflet provided with your specific product for the full list of non-medicinal ingredients.
Pen device. Generic semaglutide uses multi-dose pens similar to the Ozempic pen. The 0.25/0.5 mg pen and 1 mg pen are currently available. There is no single-injection pen for doses above 1 mg.
Maximum single-injection dose. Generic semaglutide pens deliver a maximum of 1 mg per injection. To achieve weekly doses above 1 mg, you need to give yourself more than one injection per week.
Manufacturer. Generic semaglutide is made by manufacturers other than Novo Nordisk, who make Ozempic and Wegovy.
Is generic semaglutide as effective as Ozempic and Wegovy?
Yes, at the same dose. Because generic semaglutide contains the same active ingredient, in the same amount, as the branded reference product, you can expect the same effect at the same dose.
Because generic semaglutide pens deliver a maximum of 1 mg per injection, your weekly dose may be given as one injection (up to 1 mg) or as more than one injection on the same day (for doses above 1 mg). At equivalent total weekly doses, the clinical weight loss evidence is the same as for branded semaglutide. Individual results vary.
Is generic semaglutide as safe as Ozempic and Wegovy?
Yes. Health Canada applies the same safety, quality, and manufacturing standards to generic medications as to branded medications. The active ingredient, semaglutide, has been studied extensively, and the safety profile is well established.
The side effects of generic semaglutide are the same as those of Ozempic and Wegovy. For a full overview, see the Side Effects – Weight Loss Medications article in this section.
Why is generic semaglutide less expensive?
Generic medications are often available at a lower price than branded medications. This is because generic manufacturers do not have to repeat the original clinical development work that the branded manufacturer carried out. This cost saving is reflected in the price you pay.
Why might I need to give myself more than one injection per week with generic semaglutide?
Generic semaglutide pens currently deliver a maximum of 1 mg per injection. If your MedExpress clinician has prescribed a weekly dose higher than 1 mg, you will need to give yourself more than one injection on your dosing day to achieve your full dose.
For example:
A weekly dose of 1.5 mg is given as one 1 mg injection plus one 0.5 mg injection on the same day
A weekly dose of 2 mg is given as two 1 mg injections on the same day
A weekly dose of 2.5 mg is given as two 1 mg injections plus one 0.5 mg injection on the same day
All injections for a given week are given on the same day, at different injection sites, each with a new needle. Your pharmacy will supply the right number of pens and needles for your dose. See the Dosing & Treatment – Weight Loss Medications article for the full step-by-step instructions.
Can I reach the highest semaglutide dose (2.4 mg) with generic semaglutide?
Generic semaglutide pens deliver a maximum of 1 mg per injection. The closest equivalent weekly dose available through multi-injection regimens is 2.5 mg (given as three injections on the same day).
If you would prefer a single weekly injection at 1.7 mg or 2.4 mg, your MedExpress clinician can discuss whether switching to Wegovy is appropriate for you. Wegovy is available in single-injection pens at these higher strengths.
Is generic semaglutide a compounded medication?
No. Generic semaglutide is a manufactured pharmaceutical product approved by Health Canada. It is made in a regulated facility under the same quality standards as branded medications. It is not a compounded preparation.
Compounded medications are prepared individually by a pharmacist for a specific patient. MedExpress Canada does not provide compounded GLP-1 medications.
Can I switch from Ozempic or Wegovy to generic semaglutide?
In most cases, yes. Because generic semaglutide contains the same active ingredient as Ozempic and Wegovy, switching is straightforward at an equivalent dose. Your MedExpress clinician will guide you through the switch and confirm the appropriate dose.
If you are switching from Wegovy at a dose higher than 1 mg, your clinician will explain whether your generic semaglutide dose will be given as more than one injection per week.
You should not take more than one semaglutide-containing product at the same time. This includes Ozempic, Wegovy, Rybelsus, and any generic semaglutide product.
My new pen looks different from my last one. Is that normal?
Possibly, yes. If you have switched from Ozempic or Wegovy to generic semaglutide (or vice versa), your pen will look different because it is a different product.
If you have been on generic semaglutide and your new pen looks different from your previous generic pen, this may be because the product has been supplied by a different manufacturer. The active ingredient and dose are the same. Always check the packaging to confirm the strength and follow the instructions provided with your specific pen.
If you are unsure whether your medication is correct, do not inject. Contact our clinical support team and have your packaging ready.
How do I inject generic semaglutide?
Generic semaglutide is injected once weekly under the skin (subcutaneously) in your abdomen, thigh, or upper arm. The injection technique is similar to the Ozempic pen. See the How do I inject Weight Loss Medication? article for full step-by-step instructions.
If your prescribed weekly dose is higher than 1 mg, you will need to give yourself more than one injection on the same day. See the Dosing & Treatment – Weight Loss Medications article for the multi-injection guidance.
How do I store generic semaglutide?
Storage instructions can vary by manufacturer. Always follow the storage instructions on your specific product packaging.
In general, semaglutide pens are stored in the refrigerator (2°C to 8°C) before first use, kept away from the freezer compartment, and protected from light. After first use, pens can usually be kept at room temperature (below 30°C) for a defined number of weeks. Confirm the exact after-use storage time for your product from the leaflet.
What if I have side effects from generic semaglutide?
The side effects of generic semaglutide are the same as those of Ozempic and Wegovy because the active ingredient is the same. The most common side effects are gastrointestinal (nausea, diarrhoea, vomiting, constipation) and are usually mild to moderate. They often improve as your body adjusts to the medication.
If you are experiencing side effects, contact the MedExpress clinical support team. Your dose can be adjusted to make sure you are comfortable. For a full overview of side effects, including symptoms that need urgent medical attention, see the Side Effects – Weight Loss Medications article.
Who makes generic semaglutide in Canada?
As of May 2026, Health Canada has authorized generic semaglutide from Dr. Reddy's Laboratories and Apotex Inc. Health Canada has also said it is reviewing additional generic semaglutide submissions from other manufacturers.
Important: MedExpress clinical assessment
MedExpress provides an online consultation where a licensed Canadian clinician determines whether generic semaglutide is appropriate for you. Your clinician will review your medical history and confirm that the treatment is safe and suitable for your individual circumstances.
If you still need help after reviewing the information above, additional assistance is available.