Zepbound vs Trulicity: How they compare for weight loss
One’s approved for obesity. One’s approved for type 2 diabetes. Both are prescribed for weight loss. Here’s how they compare.
Zepbound is one of the most effective drugs for weight loss—and the new single-dose vials are making it more affordable. Learn more about how much Zepbound costs.
If you’re among the 70% of Americans who have excess weight or are living with obesity, you’ve likely heard a lot about Zepbound® in the last six months. And you might be wondering: If it’s right for me, how much is that gonna cost?
In this post, we’re digging into the details to help you learn what to budget for and how to save on the cost of Zepbound.
Four key takeaways:
Zepbound (tirzepatide) is the newest injectable weight-loss medication and the first “dual agonist” or GLP-1/GIP receptor agonist drug that’s FDA-approved for weight loss.
The FDA approved Zepbound in November 2023 as a treatment to assist chronic weight management in people with a body mass index (BMI) of 30+ or those with BMIs of 27+ who have at least one weight-related health condition (such as high blood pressure, high cholesterol, or type 2 diabetes).
Manufactured by Eli Lilly & Co., Zepbound is a once-weekly injection that starts with an initial dose of 2.5 mg, building to a maximum dose of 15 mg (if clinically needed). Zepbound’s active ingredient, tirzepatide, mimics two naturally occurring gut hormones—glucagon-like peptide 1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP)—to help reduce appetite, slow digestion, and tamp down hunger.
While Zepbound can cause mild and serious side effects and isn’t safe for everyone, it has been popular from the jump—in large part because clinical studies have found it highly effective for weight loss.
Zepbound’s clinical results outpace clinical weight loss rates for earlier “single agonist” GLP-1 weight loss medications like Wegovy® and Saxenda®.
In clinical trials, adults with obesity or excess weight (with or without diabetes) who took Zepbound as part of a weight care program experienced statistically significant weight loss compared to those taking placebo. In the latest findings, participants without diabetes who were on the highest doses (10 mg or 15 mg) for 36 weeks lost an average of 20.9% of their body weight.
The retail price may be higher at a given pharmacy, but the list price for Zepbound set by the manufacturer is about $1,086 for a month’s supply (four injector pens of any dosage). That’s roughly $260 less than the list price for a month of Wegovy (semaglutide) or Saxenda (liraglutide), two other brand-name injectable GLP-1 prescription drugs approved for weight loss. (The cost of Teva Pharmaceuticals’ authorized generic liraglutide is about $469 for the two pack and $704 for the three pack.)
Zepbound is priced about the same as Mounjaro®, which contains the same active ingredient as Zepbound (tirzepatide) and about $100 more than Ozempic® (semaglutide). Both Mounjaro and Ozempic are FDA-approved for type 2 diabetes but are prescribed off-label for weight loss or obesity care.
Finally, Zepbound is considerably more expensive than older non-GLP-1 weight-loss medications and diabetes drugs prescribed off-label for weight loss. The diabetes drug metformin, for example, typically ranges from $10 to $30 a month, depending on dosage.
Eli Lilly has a cost navigator that you can use to check insurance coverage quickly. However, since Zepbound is still relatively new, and your insurance company plan documents may not be updated, you’ll need to call your insurer to determine your coverage. Some plans exclude prescription drugs for weight loss. Other insurers may cover Zepbound but only with prior authorization. If it’s covered, you may still have to pay out-of-pocket until you meet your yearly deductible and co-payments.
Even if Zepbound is not covered under your insurance, if you have commercial insurance and a valid prescription, Eli Lilly’s Zepbound Savings Card may cut your cost by as much as $469 a month through June 30, 2025.
If you have Zepbound insurance coverage, the card can save you even more, pushing costs as low as $25 for a one-month or three-month supply until December 31, 2025.
See if you qualify and check the limitations here. One key exclusion: You can’t use the card if you have state, federal, or government-funded health care, including Medicare or Medicaid.
At the end of February 2025, Lilly announced that in addition to its 2.5 mg and 5 mg single-dose Zepbound vials, it was launching 7.5 mg and 10 mg single-dose Zepbound vials for $599 and $699 per month. (Still less expensive than its Zepbound injector pens.) Lilly also reduced the four-week supply of the 2.5 mg single-dose Zepbound vials to $349 and the four-week supply of 5 mg single-dose vials to $499. With the expansion of its single-dose vials, Lilly also debuted the Zepbound Self Pay Journey Program, which further reduces the price of the 7.5 and 10 mg single-dose vials to $499 per month for first fills and refills.
These come with two caveats:
Drug discount programs like GoodRx, Drugs.com, and SingleCare may offer coupons or coupon codes that can help trim retail prices or at least bring them closer to the manufacturer’s list price if you don’t have insurance or don’t qualify for the manufacturer’s savings card.
Prices vary among pharmacies. And some offer reduced prices for purchases made in cash without insurance or other discounts. Ask your pharmacist for their best cash price. And don’t be afraid to check chat rooms focused on obesity care or Zepbound cost, such as those on Reddit, for recent price wins from pharmacies in your area.
Zepbound isn’t right for every budget—or everybody.
GLP-1 and GLP-1/GIP medications do have some known potential side effects. The most common are nausea, vomiting, diarrhea, and constipation. More serious but less common side effects include pancreatitis, gallbladder disease, and worsening of diabetic eye disease. Those with a personal or family history of medullary thyroid cancer or multiple endocrine neoplasias should not use them. Find detailed side effects and risk information for specific medications by name on our dedicated medication page.
If you can’t take—or afford—Zepbound, that doesn’t mean you can’t get weight care. Ask your Found clinician or other trusted health care provider about alternatives that may be a better fit for you—and your insurance coverage. Found’s clinical team designs a treatment plan personalized to your needs and unique biology to help you lose weight safely and sustainably.
About Found
Found is among the largest medically-supported telehealth weight care clinics in the country, having served more than 250,000 members to date. To discover your MetabolicPrint™ and start your journey with Found, take our quiz.
Found is not affiliated with Eli Lilly and Co., the owner of the registered trademark Mounjaro® and Zepbound®, nor is it affiliated with Novo Nordisk A/S., the owner of the registered trademark Wegovy®, Ozempic®, and Saxenda®. The content provided is for informational purposes only and should not be used as a basis for diagnosing or treating any health condition. Always follow your health care provider’s instructions to ensure safe and effective management of your health conditions. Certain medications are only FDA approved to treat conditions other than weight but may be prescribed to help aid in weight loss. Prescriptions are up to a medical provider’s discretion. Visit Found’s website for risk information.
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