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Is Ozempic safe after gastric bypass or sleeve surgery?

Medically reviewed by Kristianne Hannemann, PharmD. Last updated on March 7, 2025.

Official Answer by Drugs.com

Ozempic (semaglutide) can be used after bariatric surgery, including gastric bypass and sleeve gastrectomy, to help prevent weight regain. It is a glucagon-like peptide-1 (GLP-1) receptor agonist approved for type 2 diabetes, but is often prescribed off-label for weight loss.

While large-scale studies on Ozempic’s safety after bariatric surgery are limited, existing research suggests that its side effects are similar to those experienced by individuals who have not had weight-loss surgery. Your healthcare provider can help determine if Ozempic is right for you.

Can You Take Ozempic After Gastric Bypass or Sleeve Surgery?

Studies indicate that semaglutide is safe and effective for weight loss in patients who have undergone bariatric surgery. However, it may not be suitable for everyone, particularly those with:

Your doctor can assess whether Ozempic or a similar medication is appropriate based on your medical history.

How Effective Is Ozempic for Weight Loss After Bariatric Surgery?

Several studies suggest Ozempic helps patients manage weight regain after weight-loss surgery:

Related questions

How Does Ozempic Help With Weight Loss?

Ozempic mimics the natural glucagon-like peptide-1 (GLP-1) hormone in the body, activating receptors that regulate appetite and digestion. It aids weight loss by:

What Are the Side Effects of Ozempic?

Ozempic commonly causes gastrointestinal side effects, including:

These are not all possible side effects. Consult your healthcare provider and review the product information for a complete list.

This is not all the information you need to know about Ozempic (semaglutide) for safe and effective use and does not take the place of your doctor’s directions. Review the full product information and discuss this information and any questions you have with your doctor or other health care provider.

References

Jensen, A. B., et. al. 2023. Efficacy of the Glucagon-Like Peptide-1 Receptor Agonists Liraglutide and Semaglutide for the Treatment of Weight Regain After Bariatric surgery: a Retrospective Observational Study. In: Obesity Surgery. DOI: https://doi.org/10.1007/s11695-023-06484-8

Kommu, S., et. al. 2024. Semaglutide. In: StatPearls [Internet]. Accessed 12/27/24 at https://www.ncbi.nlm.nih.gov/books/NBK603723/

Lautenbach, A., et. al. 2022. The Potential of Semaglutide Once-Weekly in Patients Without Type 2 Diabetes with Weight Regain or Insufficient Weight Loss After Bariatric Surgery—a Retrospective Analysis. In: Obesity Surgery. DOI: https://doi.org/10.1007/s11695-022-06211-9

Ozempic [package insert]. Updated November 2024. Novo Nordisk. Accessed 12/27/24 at https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=adec4fd2-6858-4c99-91d4-531f5f2a2d79

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