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What's the difference between Mounjaro and Zepbound?

Short answer Identical drug — both are weekly tirzepatide from Eli Lilly. Mounjaro is approved for type 2 diabetes, Zepbound for weight management and sleep apnea. Same doses (2.5–15 mg), same effects; insurance coverage rules are the real difference.

This is the tirzepatide version of the Ozempic/Wegovy split, and it’s even simpler because the dose ranges are identical: | | Mounjaro | Zepbound | | --- | --- | --- | | Molecule | Tirzepatide | Tirzepatide | | FDA-approved for | Type 2 diabetes | Weight management; obstructive sleep apnea | | Dose range | 2.5–15 mg weekly | 2.5–15 mg weekly | | Formats | Pens | Pens and cheaper single-dose vials (LillyDirect) | Practical notes: - With type 2 diabetes → Mounjaro is the insurance-friendly route and delivers the same weight loss. - Without diabetes → Zepbound is the on-label product. Its OSA indication matters: some plans that exclude “weight-loss drugs” still cover Zepbound for documented moderate-to-severe sleep apnea — worth exploring if you have a sleep study. - Cash payers should look at Zepbound vials via LillyDirect (≈$349–$499/month), one of the better brand-name deals — see the cost guide.

This is general information, not medical advice. GLP-1 medications are prescription drugs. Talk with a licensed clinician about your own health before starting, changing, or stopping treatment.

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