Mounjaro and Zepbound both contain tirzepatide, made by the same company, Eli Lilly. But they’re priced differently depending on why you’re taking it and what kind of insurance you have. Zepbound is built for weight loss, and it has clearer self-pay pricing. Mounjaro is built for type 2 diabetes, and if you’re using it off-label for weight loss, your self-pay price is a lot less clear right on Lilly’s own site.
Quick verdict
Who Zepbound is for: anyone who wants tirzepatide for weight loss and wants a posted self-pay price they can plan around.
Who Mounjaro is for: people with type 2 diabetes, especially those with commercial insurance that already covers it.
Who should skip which one: If you don’t have diabetes and you don’t have insurance, skip Mounjaro’s self-pay route for now. Lilly hasn’t posted a flat number. Zepbound is the more transparent option.
Prices checked today: Zepbound self-pay starts at $299 a month. Mounjaro’s savings card gets covered patients to $25, but Lilly doesn’t publish a plain self-pay number for Mounjaro on its savings page.
Mounjaro vs Zepbound: what’s actually different
Here’s the thing that trips people up. When you’re comparing Mounjaro vs Zepbound, you’re not comparing two different drugs. You’re comparing two brand names for the same molecule, tirzepatide, sold for two different reasons.
Zepbound is FDA-approved for chronic weight management in adults with obesity or overweight with a weight-related health problem. It’s also approved for moderate to severe obstructive sleep apnea in adults with obesity.
Mounjaro is FDA-approved to help adults with type 2 diabetes manage blood sugar. Doctors do prescribe it off-label for weight loss sometimes, but that’s not what it was built and priced around.
That one difference changes everything about the price. Zepbound has a whole self-pay program built for people without coverage. Mounjaro really doesn’t, not in the same clean way. More on that below.
Zepbound price, straight from Lilly’s site
I checked zepbound.lilly.com/savings and pricinginfo.lilly.com/zepbound today. Here’s what’s actually posted.
If you have no insurance, or insurance that won’t cover it
Through the Zepbound Self Pay Journey Program, Lilly lists it at $299 a month on their site right now for the 2.5 mg starting dose. The 5 mg dose runs $399 a month. Every dose from 7.5 mg up through 15 mg is $449 a month, as long as you refill within 45 days of your last delivery. Miss that window, and the higher doses jump back up to $499 for 7.5 mg and $699 for the 10 mg, 12.5 mg, and 15 mg doses.
That’s a real, working self-pay program. You can buy it through LillyDirect or pick it up at a pharmacy like Walmart.
If your insurance covers Zepbound
Lilly’s site says eligible patients can pay as little as $25 for a one-month or three-month supply of the Zepbound single-dose Pen. Not the KwikPen, and not the vial, specifically the Pen. That’s an important detail because people mix these up and then get confused at the pharmacy counter.
If you have Medicare
There’s a GLP-1 Bridge program that caps the price at $50 a month for eligible Medicare Part D patients using Zepbound for weight management. You have to meet certain clinical criteria, so this isn’t automatic. Talk to your doctor about it.
Mounjaro price, straight from Lilly’s site
I checked mounjaro.lilly.com/savings-coverage and pricinginfo.lilly.com/mounjaro today too. And honestly, this is where it gets a bit annoying.
If your insurance covers Mounjaro
Same deal as Zepbound. As little as $25 for up to a three-month prescription, according to the site. That’s the best-case scenario, and a lot of people with type 2 diabetes will land here since coverage for the diabetes indication is more common than coverage for weight loss.
If your insurance doesn’t cover it
Lilly’s savings card gets you to as low as $499 for a one-month fill, again for people who already have commercial insurance, just not insurance that covers this specific drug.
If you have no insurance at all
Here’s where I have to be honest with you. Lilly’s own pricing page for Mounjaro does not show a plain self-pay dollar amount. It just points you toward LillyDirect and says terms apply. Sounds a bit annoying, right? It kind of is. Other sources online quote a list price around $1,069 to $1,086 a month, but that’s the sticker price before any discount, not a real self-pay figure from Lilly’s own checkout. I’m not going to hand you a made-up number here. If you’re uninsured and want Mounjaro specifically, you’ll need to go through the LillyDirect signup flow to see your actual price.
Mounjaro vs Zepbound: price comparison table
| Approved for | Weight loss, obesity, sleep apnea | Type 2 diabetes |
| Self pay, no insurance | $299 to $449 a month by dose | Not posted, check LillyDirect |
| Commercial insurance, covered | As low as $25 (1 to 3 month supply) | As low as $25 (1 to 3 month supply) |
| Commercial insurance, not covered | $299 to $449 self pay program, or $499 via savings card | As low as $499 (1 month, savings card) |
| Medicare | Up to $50 a month via GLP-1 Bridge, if eligible | Standard Part D rules apply |
Pick Zepbound if you want the drug for weight loss, or if you’re uninsured and want a price you can actually see before you sign up anywhere.
Pick Mounjaro if you have type 2 diabetes and your goal is blood sugar control first. It’s also the smarter pick if you already know your commercial insurance covers it, since the $25 price applies either way.
Signing up, insurance, and canceling
Both drugs run through the same company, so the process looks pretty similar.
Sign-up: you need a prescription for either one. Lilly connects you to independent telehealth providers or in-person care through its site if you don’t already have a doctor. Once you have a script, you either fill it at a regular pharmacy or go through LillyDirect for the self-pay pricing.
Insurance: call your plan before you fill anything. Coverage for Mounjaro (diabetes) is usually more common than coverage for Zepbound (weight loss), since a lot of plans still exclude weight loss drugs outright. Some plans exclude both.
Canceling: there’s no subscription to cancel with Lilly directly, since you’re just filling prescriptions. If you stop wanting refills, you just don’t refill. If you used a telehealth provider to get the prescription, check their specific cancellation policy since that’s separate from Lilly.
Common complaints: the biggest one I keep seeing is the 45-day refill rule on Zepbound’s higher doses. People miss the window while traveling and then get hit with the higher price. Set a reminder. For Mounjaro, the complaint is more about confusion; people expect a clean self-pay price like Zepbound has and don’t find one.
Who should skip these: if you’re not diagnosed with diabetes and you’re not okay with an off-label prescription, skip Mounjaro and go straight to Zepbound instead. It’s the one actually built and priced for weight loss.
FAQ
Is Mounjaro cheaper than Zepbound? Not really comparable directly. If you have commercial insurance that covers either one, both can get to $25. Without insurance, Zepbound has a clear posted price starting at $299. Mounjaro doesn’t post one in the same way.
Can I use my Zepbound savings card on Mounjaro, or the other way around? No. They’re separate savings programs tied to the specific drug and its approved use.
Why does Zepbound have a self-pay program but Mounjaro doesn’t, if they’re the same drug? Zepbound was built and marketed specifically to reach people paying out of pocket for weight loss, since insurance coverage for obesity drugs has been so spotty. Mounjaro’s audience is mostly people with diabetes going through regular insurance channels.
Can my doctor prescribe Mounjaro for weight loss instead of Zepbound? That’s a medical decision between you and your doctor. Some doctors do prescribe it off-label. Talk to them about which one fits your situation and your insurance.
Does either one have a generic version yet? No. Tirzepatide is still under patent, so there’s no generic form of either drug right now.
My take
If price and clarity matter to you, Zepbound wins this one. Lilly built a real self-pay ladder for it and posted the numbers where you can see them. Mounjaro works great for what it’s approved for, managing blood sugar in type 2 diabetes, and the $25 savings card is genuinely good if your insurance already covers it. But if you’re uninsured and hoping to use Mounjaro for weight loss, you’re going into that signup flow a bit blind on price, and that’s worth knowing before you start. Talk to your doctor about which drug and which use actually fits your health situation. This article isn’t telling you what to choose, just what each one actually costs right now.