GLP-1 medications (Ozempic, Wegovy, Mounjaro, Zepbound) before cosmetic surgery
Short answer. GLP-1 medications slow stomach emptying, which can change your anesthesia plan. Most U.S. anesthesia guidance currently recommends an individualized perioperative pause — typically holding daily GLP-1s the day of surgery and weekly GLP-1s for at least one week before — but the exact window is your prescriber's and anesthesiologist's call. Do not stop any medication on your own.
Reviewed 2026-04-15 · Reviewed by the Precover editorial team. Precover does not provide medical advice. Always confirm specifics with your surgeon, anesthesiologist, and primary care team.
Why GLP-1s matter before surgery
GLP-1 receptor agonists — semaglutide (Ozempic, Wegovy), tirzepatide (Mounjaro, Zepbound), liraglutide (Saxenda, Victoza), and dulaglutide (Trulicity) — slow how quickly the stomach empties. That matters under anesthesia because food or fluid that is still in the stomach can be aspirated into the lungs during induction, even after a standard fasting window.
In 2023 the American Society of Anesthesiologists issued first-of-its-kind guidance suggesting these medications be held before elective procedures. In 2024 a multi-society statement (ASA, ASGE, AAGBI, ISPCOP, and SAMBA) softened the recommendation to a more individualized approach: most adult patients can proceed without an extended hold if a careful clinical assessment shows no signs of delayed gastric emptying. Either way, your anesthesia team needs to know you are on a GLP-1.
What patients usually need to do
| Medication pattern | Typical hold window discussed | Notes |
|---|---|---|
| Daily GLP-1 (e.g. Saxenda) | Hold the day of surgery | Resume only after your team confirms it is safe. |
| Weekly GLP-1 (e.g. Ozempic, Wegovy, Mounjaro, Zepbound) | Hold at least 1 week before surgery | Some teams ask for a longer pause, others use a clear-liquid diet the day before instead. |
| GLP-1 used for type 2 diabetes | Coordinate with your diabetes prescriber | Glucose management plan must come from the prescribing clinician. |
Questions to ask at your consultation
- When exactly should I hold my GLP-1 dose before surgery?
- Should I switch to clear liquids the day before in addition to (or instead of) a hold?
- When can I resume the medication after surgery?
- Do I need a gastric ultrasound or other check before induction?
- Who is coordinating with my prescriber about timing?
How Precover surfaces GLP-1 use
If you list a GLP-1 anywhere in the Precover screen, your readiness packet will flag it for the surgical and anesthesia team and include a question for your consultation. The packet stays on your phone (or PDF) until you choose to share it — Precover does not message your surgeon for you.
Frequently asked questions
- Do I have to stop my GLP-1 before cosmetic surgery?
- Not always. Most current U.S. guidance asks the surgical and anesthesia team to assess each patient individually. The decision is theirs — bring your medication name, dose, and last-injection date to your consultation.
- Is one week off enough?
- For weekly GLP-1s like semaglutide and tirzepatide, one week is the most commonly cited minimum hold window in the 2023 ASA guidance. The 2024 multi-society update allows shorter holds when individualized assessment is reassuring.
- What if I forget to mention I'm on a GLP-1?
- Tell your team as soon as you remember, even if it is the morning of surgery. Anesthesia plans can be adjusted; a missed disclosure can lead to cancellation.
- Will my surgery be cancelled if I am on a GLP-1?
- Not by default. Cancellation usually only happens when the team cannot confirm a safe pre-op fast or when there are signs of delayed gastric emptying that day.