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Can Ozempic cause stomach paralysis or bowel injury?

Medically reviewed by Kristianne Hannemann, PharmD. Last updated on July 24, 2024.

Official answer

by Drugs.com

Research suggests a possible link between Ozempic (semaglutide) and stomach paralysis and bowel injury, but more studies are needed to fully understand the extent of the risk. GLP-1 agonists such as Ozempic work to achieve better blood sugar levels in part by slowing down stomach emptying. However, this could result in many gastrointestinal side effects.

People living with diabetes are at a higher risk for stomach paralysis, also known as gastroparesis or delayed stomach emptying, and bowel injury. In fact, diabetes is the most common cause of stomach paralysis. Taking Ozempic may increase this risk further.

Many reports of stomach paralysis and intestinal problems have been filed after Ozempic came onto the market. Additionally, over 100 lawsuits claim Ozempic can cause serious stomach side effects such as stomach paralysis and intestinal blockage.

What is Ozempic?

Ozempic is a once-weekly injectable medication used in addition to diet and exercise to treat adults with type 2 diabetes. It is also FDA approved to lower the risk of major heart-related events in adults with type 2 diabetes and heart disease. It belongs to the drug class called glucagon-like peptide 1 (GLP-1) receptor agonists.

Can you get bowel injury from Ozempic?

Bowel injury from Ozempic is possible. It is thought that higher GLP-1 activity can reduce gastrointestinal movement. This can lead to constipation, and more serious problems such as blockage in the intestine.

In 2023, the FDA updated Ozempic’s label to include ileus (lack of movement in the intestines) under postmarketing side effects. This update was based on reports to the FDA’s Adverse Events Reporting System. These reports are voluntary, so it is hard to know if the reported side effects are linked to any particular medication or due to another cause.

Studies suggest Ozempic might raise the risk for intestinal blockage. It increases GLP-1 activity and slows down intestinal movements. As a result, food and waste stop moving through your intestine properly. This can lead to a blockage in the intestines, which can cut off the blood supply and cause serious damage to your bowel. It can be months or years before you experience this side effect from Ozempic, and not everyone will get a bowel injury from taking it.

Symptoms of intestinal blockage include:

  • Stomach cramps or pain
  • Poor appetite
  • Constipation
  • Vomiting
  • Bloating

Tell your healthcare provider if you experience any of the symptoms listed above while taking Ozempic. They can make sure you don’t have a blockage in your intestine or any bowel injury.

Related questions

Can you get stomach paralysis from Ozempic?

Yes, you can get stomach paralysis from taking Ozempic. This does not mean your stomach is actually paralyzed. Part of the way Ozempic works is by slowing down stomach emptying. However, some people might experience this more strongly than others.

In one study, researchers reviewed FDA safety data on semaglutide from 2018 to the end of the first quarter in 2022. They identified 26 serious cases and 22 non-serious cases of impaired stomach emptying. This was out of 5,442 cases of semaglutide-related stomach side effects.

Symptoms of stomach paralysis include:

  • Stomach discomfort
  • Bloating
  • Feeling full too early after starting a meal
  • Nausea

Gastrointestinal side effects from Ozempic are common. However, you should contact your healthcare provider if you experience any of the side effects listed above.

How does Ozempic affect the nervous and digestive system?

Ozempic is a GLP-1 agonist. GLP-1, a hormone in the body that affects blood sugar and digestion, is known to play a role in stomach emptying and movement. It slows down movement and secretions in the intestines by inhibiting the vagus nerve. The vagus nerve is part of the parasympathetic nervous system, which is responsible for digestion. Studies suggest that Ozempic activates GLP-1 receptors on sensory nerve fibers called vagal afferents that send information from the gastrointestinal tract to the brain.

People with diabetes are at a higher risk of intestinal blockage, since many people who have diabetes are affected by diabetic neuropathy. Diabetic neuropathy is a type of nerve damage that can occur as a complication of diabetes. High blood sugar levels over time can injure nerves throughout the body, including those in the digestive tract.

While Ozempic can cause serious side effects, it is important to weigh the risks of taking this medication with the benefits for your health with your healthcare provider. They will monitor you closely for side effects during your treatment.

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 healthcare provider’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

Andrews, C. N. 2008. Effects of glucagon-like peptide-1 and sympathetic stimulation on gastric accommodation in humans. In: Neurogastroenterology and Motility. DOI: https://doi.org/10.1111%2Fj.1365-2982.2007.00923.x

Chaudhry, A., et. al. 2024. Tendency of Semaglutide to Induce Gastroparesis: A Case Report. In: Cureus. DOI: https://doi.org/10.7759%2Fcureus.52564

Fallie, J. L., et. al. 2021. Incretin-Based Drugs and Risk of Intestinal Obstruction Among Patients With Type 2 Diabetes. In: Clinical Pharmacology and Therapeutics. DOI: https://doi.org/10.1002/cpt.2430

Llamas, M. 2024. Ozempic Lawsuit. In: Drugwatch. Accessed July 24, 2024 at https://www.drugwatch.com/legal/ozempic-lawsuit/

Lu, J., et. al. 2023. A potentially serious adverse effect of GLP-1 receptor agonists. In: Acta Pharmaceutica Sinica B. DOI: https://doi.org/10.1016/j.apsb.2023.02.020

National Institute of Diabetes and Digestive and Kidney Diseases. (2021). How Does Gastroparesis Affect People with Diabetes? Accessed July 24, 2024 at https://www.niddk.nih.gov/health-information/professionals/diabetes-discoveries-practice/how-gastroparesis-affect-people-with-diabetes

Ozempic [package insert]. Updated September 2023. Novo Nordisk. Accessed July 24, 2024 at https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=adec4fd2-6858-4c99-91d4-531f5f2a2d79

Shu, Y., et. al. 2022. Gastrointestinal adverse events associated with semaglutide: A pharmacovigilance study based on FDA adverse event reporting system. In: Frontiers in Public Health. DOI: https://doi.org/10.3389/fpubh.2022.996179

U.S. Food and Drug Administration. Drug Safety-related Labeling Changes (SrLC). Accessed July 24, 2024 at https://www.accessdata.fda.gov/scripts/cder/safetylabelingchanges/index.cfm?event=searchdetail.page&DrugNameID=2183

Read next

How long does it take for Ozempic to work?

Your blood glucose (sugar) levels should start to fully decline within the first week after you start using Ozempic (semaglutide) at your regular dose. However, the full effect can take 8 weeks or longer, as this is a long-acting medication that is injected only once per week. Continue reading

Ozempic vs Wegovy: What's the difference between them?

Ozempic is used to treat type 2 diabetes in adults, while Wegovy is used for weight loss and chronic weight management in adults and children 12 years of age and older with overweight or obesity. In these populations, both agents are approved reduce the risk of heart attack, stroke and heart-related death in people with cardiovascular (heart, blood vessel) disease.

Ozempic and Wegovy are the two brand names that Novo Nordisk uses to market injectable semaglutide. Ozempic and Wegovy come in different strengths to treat the different conditions. Continue reading

How many doses are in an Ozempic pen?

Ozempic pens come in 3 sizes. Each pen holds 4 maintenance doses of either 0.5 mg, 1 mg, or 2 mg of medicine given once weekly and will last for one month. Continue reading

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