Semaglutide Side Effects — What Patients Report

Questions readers ask

How common is nausea on semaglutide?

Nausea is the most commonly reported side effect at about 44%, followed by diarrhea at 30%, vomiting at 24% and constipation at 24%. Most cases are mild to moderate and linked to dose escalation.

What helps reduce semaglutide stomach side effects?

The page lists slow titration, smaller meals, staying hydrated, over-the-counter anti-nausea medicine when your clinician agrees, and avoiding high-fat meals while the dose is being increased.

Why do side effects often appear after a dose increase?

Semaglutide’s gastrointestinal effects are described as titration-dependent, so they tend to show up as the dose steps up. That is why slow titration is the first management strategy listed, with your prescribing clinician deciding the pace of each increase.