Wegovy Side Effects
Wegovy side effects at the 2.4mg dose: nausea (44%), vomiting (24%), diarrhea (30%). Higher rates than Ozempic due to higher doses. Management strategies.
Nausea (2.4mg)
44%
Diarrhea (2.4mg)
30%
Vomiting (2.4mg)
24%
Gallbladder risk
2-3%
GI discontinuation
~5-7%
Side Effects at Weight Loss Doses
Wegovy uses higher semaglutide doses than Ozempic, resulting in more pronounced side effects. At the 2.4mg maintenance dose in the STEP 1 trial: nausea (44%), diarrhea (30%), vomiting (24%), constipation (24%), abdominal pain (20%), headache (14%), fatigue (11%), dyspepsia (9%), dizziness (8%), and abdominal distension (7%).
These rates are higher than Ozempic's because the dose is higher. The 16-week titration schedule is designed to gradually build tolerance, but GI effects remain the most common reason for discontinuation.
Titration-Phase Side Effects
Side effects are most intense during dose increases. Each step up (0.25 to 0.5, 0.5 to 1.0, 1.0 to 1.7, 1.7 to 2.4mg) may trigger a new wave of nausea and GI discomfort that typically peaks in the first 1-2 weeks and improves by week 3-4. By the time you've been on the 2.4mg maintenance dose for 4-8 weeks, most patients report significant improvement.
If side effects are severe at any dose, your provider can extend that level for an additional 4 weeks before increasing. Going slowly is preferable to discontinuing.
Wegovy-Specific Considerations
At the higher weight loss doses, some side effects become more relevant. Gallbladder disease occurs in approximately 2-3% of patients, related to both the medication and rapid weight loss. Injection site reactions occur in about 3.5% of patients. Rapid weight loss can also cause hair thinning, skin laxity, and nutritional deficiencies.
Ensuring adequate protein (0.7-1g per pound of ideal body weight), taking a quality multivitamin, staying hydrated, and incorporating resistance training can mitigate many of these secondary effects of rapid weight loss.
Frequently Asked Questions
Are Wegovy side effects worse than Ozempic?
Yes, because Wegovy uses higher doses (up to 2.4mg vs. Ozempic's 2mg max). Higher semaglutide doses produce more GI side effects. The trade-off is greater weight loss.
Does Wegovy cause hair loss?
Some patients report hair thinning (telogen effluvium) related to rapid weight loss. This is not unique to Wegovy -- it occurs with any significant weight loss. Adequate protein intake helps minimize the risk.
How do I manage Wegovy nausea?
Eat smaller meals, avoid fatty foods, stay hydrated, try evening injections, and follow the full titration schedule. Your provider can also slow dose increases or prescribe anti-nausea medication if needed.
Find providers with comprehensive Wegovy side effect support
Compare pricing, reviews, and availability across 18,000+ GLP-1 providers nationwide.
Search Providers →Explore all Semaglutide topics
Cost guides, side effect management, dosing information, insurance coverage, and more — all backed by clinical data.