is day 3 really the useful cutoff for deciding whether it’s “normal”? nausea can happen early with semaglutide, but the trend matters more than the exact day—improving is different from worsening or being unable to keep fluids down.
Semaglutide slows gastric emptying, so nausea can linger beyond injection day—and constipation can quietly make it worse. That’s the commonly missed part. If you’re unable to keep fluids down, have severe/persistent abdominal pain, or the vomiting won’t stop, don’t just chalk it up to “normal side effects”; contact your prescriber.
Day 3 doesn’t automatically make it “normal”—semaglutide nausea can persist, but severity matters. If you can’t keep fluids down, contact your prescriber promptly.
Discussion 17