Medical weight loss
Wegovy vs Zepbound: Choosing a Weight Treatment
Wegovy and Zepbound are approved for long-term weight treatment in eligible people. Wegovy contains semaglutide; Zepbound contains tirzepatide. Choosing between them involves the available formulation, other diagnoses, tolerability, and whether the prescription can be maintained.

Compare the current products first
| Question | Wegovy and Zepbound |
|---|---|
| How is it taken? | Wegovy: daily tablet or weekly injection. Zepbound: weekly injection. |
| Who can receive weight treatment? | Both: eligible adults with obesity or overweight and a related condition. Wegovy injection also: adolescents aged 12 or older with obesity. |
| Other approved uses | Wegovy: specified cardiovascular risk reduction; its injection also has a specified MASH indication. Zepbound: moderate to severe obstructive sleep apnea in adults with obesity. |
| Weekly maintenance doses for adult weight treatment | Wegovy: 1.7 or 2.4 mg, with 7.2 mg available for selected adults after tolerating 2.4 mg. Zepbound: 5, 10, or 15 mg. |
These are label distinctions, with full eligibility criteria for each use. Cardiovascular disease, liver disease, or diagnosed sleep apnea can make an additional indication relevant. Discuss that diagnosis with the clinician managing it. Weight change alone cannot establish that another condition has resolved.
The direct weight-loss trial studied particular injections
In SURMOUNT-5, adults with obesity and without type 2 diabetes received weekly tirzepatide 10 or 15 mg or semaglutide 1.7 or 2.4 mg for seventy-two weeks. Average weight loss was 20.2% with tirzepatide and 13.7% with semaglutide. The trial was randomized and open-label.
The result favors tirzepatide at those studied doses on average. It does not compare Zepbound with Wegovy tablets or the newer 7.2 mg injection. It also cannot predict one person's response. Digestive adverse effects were common in both groups, particularly during escalation.
Choose a routine you can follow accurately
Wegovy tablets require an empty stomach in the morning, up to four ounces of water, and a thirty-minute wait before food, other drinks, or oral medicines. Weekly injections can be taken with or without food. If mornings involve other medicines or an unpredictable schedule, discuss how oral treatment would fit.
Injection presentations vary. Confirm the exact device or vial and get training for it. Both products start at low doses and increase gradually. Their milligram doses are not equivalent, and missed-dose rules differ. A switch needs instructions for timing and the new starting dose.
Tirzepatide can reduce the effectiveness of oral hormonal contraception during initiation and escalation. Its label advises a nonoral method or added barrier contraception for four weeks after starting and each increase. Semaglutide has a two-month discontinuation interval before a planned pregnancy. Pregnancy plans belong in the initial discussion.
Check ongoing access before switching
- Ask the insurer about the exact brand, formulation, diagnosis, and prior authorization.
- Request the continuing-dose price after any introductory offer ends.
- Confirm what follow-up and dietary support are included.
- Agree what happens if side effects, pregnancy plans, or payment require an interruption.
Both medicines are contraindicated with personal or family medullary thyroid carcinoma, MEN2, or serious hypersensitivity. Severe gastroparesis, pancreatitis, gallbladder disease, diabetic eye disease, and other medicines need review. Choosing the product with the larger trial average does not remove those requirements.
If you already take one, describe its benefit and adverse effects before considering a change. Do not combine Wegovy and Zepbound or overlap doses on your own. The prescribing team should coordinate any transition and continuing monitoring.
Sources
References cited in this article.
- 1. Wegovy prescribing informationDailyMed
- 2. Zepbound prescribing informationDailyMed
- 3. Tirzepatide compared with semaglutide for obesity: SURMOUNT-5New England Journal of Medicine (2025)
- 4. Getting prescription medications through Marketplace coverageHealthCare.gov
- 5. Prescription medications to treat overweight and obesityNIDDK