Mounjaro (tirzepatide) is a weekly shot that helps many people lose weight, but the price scares a lot of folks off. Here is the short version: the list price is high, yet most people never pay it. What you actually spend depends on your insurance, the brand you are prescribed, and which savings program you use. All figures below are as of mid-2026.
Mounjaro vs. Zepbound: this changes your price
This part trips up a lot of people, so read it first. Mounjaro is FDA-approved for type 2 diabetes. The same drug, tirzepatide, is sold under a different name, Zepbound, for weight loss. Same active ingredient, two brands, two approvals.
Why does that matter for cost? Insurance is much more likely to cover Mounjaro when you have a diabetes diagnosis. If you want the medication for weight loss and you do not have diabetes, most plans will not cover Mounjaro. In that case, Zepbound is usually the correct brand to ask your doctor and insurer about. Our Zepbound vs. Mounjaro guide breaks down the difference in plain terms.
The list price
Without insurance or any discount, Mounjaro runs roughly $1,070 to $1,135 per month, depending on the pharmacy and which published figure you go by. That is the sticker price at a retail pharmacy. For comparison, Zepbound lists at about $1,086 per month. Very few people end up paying these full amounts, so do not let the number stop you from looking into the options below.
What insurance does and doesn't cover
If your plan covers Mounjaro for diabetes, your copay could be modest, sometimes $25 to $100 a month depending on the plan. For weight loss, coverage is spottier. Many commercial plans still exclude weight-loss drugs, though that is slowly changing. Read our guide to whether insurance covers GLP-1 weight loss, and check the GLP-1 insurance coverage guide for your specific carrier.
Medicare
Mounjaro is covered under standard Medicare Part D for diabetes. For obesity, there is bigger news: since July 1, 2026, Medicare Part D covers Zepbound (and Wegovy) for obesity at a $50 monthly copay for people who qualify. See our Medicare GLP-1 coverage guide for who is eligible.
The Lilly savings card
Eli Lilly offers a savings card that can bring your cost down a lot. If you have commercial insurance that covers Mounjaro for diabetes, you may pay as little as $25 per month. Zepbound has a similar card, also as low as $25 a month with commercial coverage. The card does not work with Medicare or Medicaid, so it mainly helps people with job-based or marketplace plans. You can run the numbers with our savings calculator.
LillyDirect self-pay
If you have no coverage, Lilly sells directly to patients. Mounjaro is listed on LillyDirect, but Lilly has not published a settled self-pay price for it the way it has for Zepbound, and the figures circulating online disagree, so ask LillyDirect for a current quote rather than trusting a number you read somewhere. Zepbound single-dose vials through the same program run about $299 to $449 per month. That is far below the list price and is often the cheapest legitimate route for cash payers. Compare it against clinic bundles on our GLP-1 pricing guide.
A note on compounded tirzepatide
You may see ads for cheap compounded tirzepatide. Be careful. The drug shortage that made mass compounding legal ended in early 2025, and in April 2026 the FDA proposed a permanent ban on compounded tirzepatide. Compounded versions are not FDA-approved, quality varies, and the legal path for them has largely closed. Treat any bargain offer with skepticism and stick with the brand-name options above.
How to lower your cost
- Ask whether Zepbound, not Mounjaro, is the right brand for your situation. It can change what insurance approves.
- Check your plan's formulary before you fill anything.
- Apply for the Lilly savings card if you have commercial insurance.
- Compare LillyDirect self-pay if you are paying cash.
- Compare clinic prices, since bundles and consult fees vary widely.
Read more in our guide to finding affordable GLP-1 clinics and the Zepbound cost and savings guide.
Bottom line
Mounjaro's list price is high, but with insurance, the savings card, or LillyDirect, most people pay far less. The single biggest lever is getting the right brand for the right diagnosis. To compare real prices near you, search Mounjaro and tirzepatide clinics in our directory or browse clinics by state.