Medications · GLP-1
Semaglutide Before Surgery
Semaglutide is the generic name behind Ozempic (type 2 diabetes), Wegovy (weight loss) and Rybelsus (the daily tablet). For surgery the concern is the same for all three: a slower-emptying stomach.
Quick answer
Why it matters
Semaglutide delays stomach emptying, so food can stay in the stomach longer than expected — raising aspiration risk under anesthesia.
Recent multi-society guidance moved away from a blanket 'stop it' rule toward identifying higher-risk patients (ongoing nausea, dose-increase phase) and managing them individually.
The daily tablet (Rybelsus) counts too — if your team decides to hold, daily forms are typically held on the day of surgery and weekly injections about a week before.
Do not stop without instruction
What to ask your doctor
- Should I take my usual dose before surgery, or hold it?
- Should I follow a clear-liquid diet for 24 hours beforehand?
- Do my symptoms make me higher risk?
- Mine is the daily tablet (Rybelsus) — does the plan differ from the weekly injection?
Red flags — call your team
Red flags — call your team
- Ongoing nausea, vomiting, or bloating
- You recently increased your dose
- You also take it for diabetes (needs a sugar plan)
References
- American Society of Anesthesiologists (ASA) & multi-society consensus on GLP-1 receptor agonists before anesthesia. asahq.org
Frequently asked questions
Do I stop semaglutide before surgery?
Not necessarily. Many patients can continue GLP-1 medicines before elective surgery; higher-risk patients may follow a 24-hour clear-liquid diet or hold the dose. Tell your team and follow their advice.
Is the advice the same for Ozempic, Wegovy and Rybelsus?
Yes — all three are semaglutide, so the surgical concern and guidance are the same. If your team decides to hold it, the timing can differ: daily tablets are typically held on the day of surgery, weekly injections about a week before.