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.