Wegovy vs Zepbound: Complete Comparison
Wondering how Wegovy and Zepbound compare? This guide breaks down the key differences in ingredients, dosing, FDA approvals, and who each medication may be best suited for. Use the comparison below to have an informed conversation with your healthcare provider.
Side-by-Side Comparison
| Feature | Wegovy | Zepbound |
|---|---|---|
| Generic Name | semaglutide | tirzepatide |
| Molecule Type | GLP-1 receptor agonist | Dual GIP/GLP-1 receptor agonist |
| Manufacturer | Novo Nordisk | Eli Lilly |
| FDA Approval | Chronic weight management | Chronic weight management |
| Available Doses | 0.25mg, 0.5mg, 1mg, 1.7mg, 2.4mg | 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, 15mg |
| Half-Life | ~7 days | ~5 days |
| Dosing Frequency | Once weekly | Once weekly |
Key Differences
- •Both are FDA-approved specifically for chronic weight management, making this a direct comparison of weight loss medications.
- •Wegovy uses semaglutide (GLP-1 only) while Zepbound uses tirzepatide (dual GIP/GLP-1), representing two different pharmacological approaches.
- •Zepbound's dual-agonist mechanism may offer greater weight loss potential, with clinical trials showing up to 22.5% body weight reduction vs Wegovy's 15-17%.
- •Wegovy has been on the market longer (approved June 2021 vs Zepbound November 2023), offering more long-term real-world safety data.
- •Dosing ranges differ significantly: Wegovy tops out at 2.4mg while Zepbound goes up to 15mg, reflecting the different potencies of each molecule.
Who Should Consider Each Medication?
Who May Prefer Wegovy
Patients who prefer a medication with longer market history and more long-term data, those who have had success with semaglutide, or patients whose insurance specifically covers Wegovy.
Who May Prefer Zepbound
Patients seeking potentially maximal weight loss, those who have plateaued on semaglutide-based medications, or patients interested in the newer dual-agonist mechanism of action.
Track Either Medication with JellyPal
Whether you choose Wegovy or Zepbound, JellyPal helps you track injections, visualize medication levels, monitor side effects, and share reports with your doctor. Our pharmacokinetic plotter uses each medication's specific half-life for accurate level modeling.
This comparison is for informational purposes only and is not medical advice. Both Wegovy and Zepbound are prescription medications that should only be taken under the supervision of a qualified healthcare provider. Consult your doctor to determine which medication is appropriate for your individual needs.
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