Mounjaro
A dual-agonist molecule — tirzepatide — carrying Canada's diabetes label.
$280–550/mo retail
with myMounjaro savings card: from $185/mo
Overview
Mounjaro is Eli Lilly's brand of tirzepatide, a once-weekly injection approved in Canada for type 2 diabetes. Unlike semaglutide, which acts on a single receptor, tirzepatide is a dual agonist: it targets both the GIP and GLP-1 receptors. That different mechanism is why it is often discussed separately from the semaglutide family.
Mounjaro's price depends heavily on dose. Lilly set list prices on December 29, 2025 of roughly $300 a month for the 2.5mg and 5mg strengths and $420 for 7.5mg and 10mg, before dispensing fees — so real retail cost ranges from about $280 to $550 a month. Costco typically runs about $30 to $40 a month cheaper than large chains such as Shoppers.
For eligible patients, the myMounjaro savings card can bring the cost to $185 a month, which is the main way to reduce the brand price.
How it works
Tirzepatide activates two gut-hormone receptors, GIP and GLP-1, rather than one. Like semaglutide it prompts insulin release when blood sugar is high, slows stomach emptying and reduces appetite; the added GIP activity is thought to contribute to its effects. For type 2 diabetes the primary goal is blood-sugar control.
Dose is titrated by a prescriber over time. This page covers the label-level frequency only and does not give escalation guidance.
How it's taken
Mounjaro is a once-weekly subcutaneous injection, taken on the same day each week with or without food. Dosing decisions belong to your prescriber.
Availability in Canada
Mounjaro is stocked at pharmacies nationwide. As a diabetes-labelled drug, it can be covered by some public plans under restricted criteria — for example, it is a Limited Use benefit on Ontario's ODB for diabetes — but it is not covered for weight loss. Tirzepatide's weight-management counterpart is a separate brand, Zepbound, covered on its own page.
There is no generic tirzepatide in Canada. Unlike semaglutide, tirzepatide remains under patent, so the lower-cost route is the manufacturer savings card rather than a generic.
Common side effects
GLP-1 side effects are usually digestive and often ease over time. This is not a complete list — read the product monograph and speak with a pharmacist or physician.
- •Nausea, particularly early on
- •Diarrhea or vomiting
- •Constipation
- •Reduced appetite
- •Abdominal discomfort
- •Injection-site reactions
What Mounjaro costs, by source
Monthly prices in Canadian dollars, last verified July 2026. Ranges reflect dose and dispensing-fee variation.
Mounjaro — lowest to highest monthly price
Each marker is a source. The list below carries the full detail.
- Costco Pharmacy$280–510/mo
- Retail pharmacies$300–550/mo
- myMounjaro savings cardsavings card$185/mo
| Source | Monthly (CAD) | What's included | Verified |
|---|---|---|---|
| myMounjaro savings cardManufacturer program | $185 | $185/mo for eligible patients through the myMounjaro savings card. Eligibility varies; confirm on the official program page. | 2026-07 |
| Costco PharmacyPharmacy | $280–510 | Costco typically runs about $30–40/mo cheaper than large chains on Mounjaro. Cost rises with dose. | 2026-07 |
| Retail pharmaciesPharmacy | $300–550 | Mounjaro (tirzepatide) by dose. Lilly list prices since Dec 29, 2025: about $300 for 2.5/5mg and $420 for 7.5/10mg, before dispensing fees. | 2026-07 |
See the full price database for every drug and source side by side.
Ways to pay less
Manufacturer savings cards and patient-support programs can cut the out-of-pocket cost sharply — but eligibility varies, and terms change. Confirm details on the official manufacturer page before you count on any of these. For the full picture — generic-vs-brand math, tax credits, and insurance appeals — see our ways to pay less navigator.
myMounjaro savings card
Can reduce the monthly cost of Mounjaro to $185 for eligible patients.
Eligibility: Eligibility varies and can change. Confirm current terms on the official manufacturer page.
Official program page →Availability in Canada
- •Available at pharmacies nationwide for type 2 diabetes.
- •Costco typically about $30–40/mo cheaper than large chains.
- •Limited Use coverage for diabetes on some public plans (e.g. Ontario ODB); not covered for weight loss.
- •No generic tirzepatide exists; myMounjaro savings card is the main cost lever at $185/mo if eligible.
Frequently asked
- How is Mounjaro different from Ozempic?
- Mounjaro is tirzepatide, a dual GIP/GLP-1 agonist, while Ozempic is semaglutide, a single GLP-1 agonist. Both are once-weekly diabetes injections; the mechanisms and price structures differ.
- Why does Mounjaro's price vary so much?
- Cost tracks the dose. Lilly's list prices are about $300 for the 2.5mg and 5mg strengths and $420 for 7.5mg and 10mg, so monthly retail cost ranges from roughly $280 to $550 depending on your strength and pharmacy.
- Is there a generic Mounjaro?
- No. Tirzepatide is still under patent in Canada, so no generic exists. The myMounjaro savings card is the main way to lower the cost for eligible patients.
Watching the pipeline?
Next-generation drugs like retatrutide and orforglipron are still investigational and not approved in Canada. We'll email you the moment that changes — nothing before. Read the full watch page.