Who should not take Semaglutide?
Documented caution flags for Semaglutide include mTC / MEN-2 history and pancreatitis history. This is not exhaustive, and absence from this list is not a safety clearance. Anyone pregnant, nursing, or managing a serious medical condition should only consider it under a doctor's care, and safety data for Semaglutide is limited.
Documented caution flags for Semaglutide
- MTC / MEN-2 history
- Pancreatitis history
- Pregnancy / nursing
Reported side effects to weigh
- Nausea (often more than tirzepatide)
- Constipation
- Fatigue
- Sulfur burps
References
- Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP-1) — Wilding JPH et al., NEJM, 2021
- Semaglutide and Cardiovascular Outcomes in Obesity without Diabetes (SELECT) — Lincoff et al., N Engl J Med, 2023
- Semaglutide and Cardiovascular Outcomes in Patients with Type 2 Diabetes (SUSTAIN-6) — Marso et al., N Engl J Med, 2016
Pepdex is an editorial reference, not medical advice. Peptides vary in legal and approval status by country, many are research compounds without full human safety data. Talk to a qualified clinician before starting anything.
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Last updated 2026-06-15.