Wegovy vs Zepbound: Which GLP-1 Is Better in 2026?
Quick Answer
Zepbound (tirzepatide) produces greater average weight loss (20-22%) compared to Wegovy (semaglutide, 15-17%), and has the lower list price ($1,086/mo vs $1,349/mo at list). However, Wegovy now has an oral pill option ($149/mo) and the Medicare GLP-1 Bridge covers it in either form, against the KwikPen only for Zepbound. Both are FDA-approved for chronic weight management.
| Feature | Wegovy | Zepbound |
|---|---|---|
| Active Ingredient | Semaglutide | Tirzepatide |
| Manufacturer | Novo Nordisk | Eli Lilly |
| Mechanism | GLP-1 receptor agonist | Dual GLP-1/GIP receptor agonist |
| FDA Approved For | Weight management + CV risk | Chronic weight management |
| Avg Weight Loss | 15-17% body weight | 20-22% body weight |
| Monthly Price | $1,349 | $1,086 |
| Oral Option | Yes ($149/mo pill) | No |
| Medicare GLP-1 Bridge | Yes: $50/month, injection or tablet | KwikPen only: $50/month |
| Doses | 0.25mg to 2.4mg weekly | 2.5mg to 15mg weekly |
| Year Approved | 2021 | 2023 |
Which Produces More Weight Loss?
Zepbound (tirzepatide) consistently shows greater weight loss in clinical trials. In the SURMOUNT program, patients on the highest dose lost an average of 20-22% of their body weight over 72 weeks — roughly 48-52 pounds for a 240-pound person.
Wegovy (semaglutide 2.4mg) produces average weight loss of 15-17% of body weightin the STEP trials — roughly 35-40 pounds for the same person. The difference comes from tirzepatide's dual GLP-1/GIP mechanism, which appears to produce stronger appetite suppression and metabolic effects.
Which Costs Less?
Zepbound is cheaper at list price: $1,086/month vs $1,349/month. However, Wegovy has an oral pill version at just $149/month (launched January 2026). Since July 1, 2026 the Medicare GLP-1 Bridge has covered Wegovy and the Zepbound KwikPen at $50/month for eligible enrollees.
Side Effects Comparison
Both share similar GI side effects: nausea (up to 44%), diarrhea (30%), vomiting (24%), constipation (24%). These typically improve after 4-8 weeks. Neither is clearly better tolerated — side effect profiles are comparable.
Which Should You Choose?
Choose Wegovy If:
- + You want an oral pill (no injections)
- + You're on Medicare and eligible for the GLP-1 Bridge
- + You have cardiovascular risk factors
- + You prefer a longer track record
Choose Zepbound If:
- + Maximum weight loss is your priority
- + You're comfortable with injections
- + You want the lower list price
- + You want dual-mechanism action
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