Does Wegovy commonly cause diarrhea?
Yes. Diarrhea is listed as a possible side effect of Wegovy (semaglutide). In clinical use and prescribing information, gastrointestinal effects are among the most commonly reported problems with GLP-1 medicines like Wegovy, and diarrhea can occur as part of that pattern. [1]
How is Wegovy-related diarrhea different from other causes?
Wegovy-related diarrhea usually fits a broader pattern of stomach and intestinal side effects, often alongside nausea, vomiting, constipation, or abdominal discomfort. That said, diarrhea can also come from infections, food intolerance, other medications, or unrelated gastrointestinal conditions—so persistent or severe symptoms may need medical evaluation. [1]
What should you do if you get diarrhea after starting Wegovy?
If diarrhea is mild, it’s often managed with supportive care (like hydration and monitoring symptoms). If it’s severe, persistent, or comes with warning signs (such as dehydration, fever, blood in stool, or worsening abdominal pain), contact a clinician promptly. Dose adjustments or slower titration may be considered depending on symptoms. [1]
When to worry about dehydration or serious side effects
Because diarrhea can lead to dehydration, seek urgent medical care if you have signs such as dizziness/fainting, very dry mouth, reduced urination, severe weakness, or inability to keep fluids down. Seek care immediately if you see blood in stool or have severe abdominal pain. These steps are consistent with how clinicians advise responding to significant GI side effects from Wegovy. [1]
How can you lower the chance of GI side effects on Wegovy?
Wegovy dosing is started low and increased gradually (titration) to reduce side effects. Sticking to the prescribed titration schedule and discussing symptom management with your prescriber can help, since GI effects often improve when the dose is adjusted appropriately. [1]
Sources
- https://www.drugs.com/pro/wegovy.html