How Do You Prevent Nausea After Anesthesia?
The best way to prevent nausea after anesthesia is to plan for it before surgery starts. Your anesthesia team assesses your risk ahead of time and gives preventive medication if you're likely to need it. Telling them about past nausea or motion sickness is the single most helpful thing you can do.
Why nausea after surgery matters
Most patients won't remember the details of their anesthetic. Many will remember feeling sick in recovery, and that memory often becomes the story they tell about their surgery. Postoperative nausea and vomiting (PONV) can also slow recovery and delay going home.
Who is most likely to feel sick after anesthesia?
The best-known risk factors are:
• Being female
• Not smoking
• A history of nausea after surgery, or of motion sickness
• Needing opioid pain medication after surgery
The more of these you have, the higher your risk. Your anesthesia team looks at them during your pre-op evaluation.
What anesthesia experts now recommend
An international panel of anesthesia experts published updated guidelines on preventing nausea after surgery in late 2025. Here's what that means for you.
Your risk gets checked before surgery. During your pre-op visit, your anesthesia team reviews your risk factors. Most patients get one or two anti-nausea medicines while they're asleep. People at higher risk may get three or four.
If you still feel sick, there's a backup plan. A second dose of the same medicine usually won't help, so your team will switch to a different kind instead.
What you can tell your anesthesia team
• Past experiences. Mention any nausea after a previous surgery, and motion sickness in cars or boats.
• Your medications. Bring a current list, including anything you take for nausea or migraines.
• Your questions. Ask what the plan is if you feel sick in recovery.
• Your pain plan. Ask whether a nerve block or other non-opioid option fits your surgery, since less opioid medication can mean less nausea.
Our post on 8 questions to ask the anesthesia team before surgery has more.
Have a surgery coming up? Ask your anesthesia team about their plan for nausea during your pre-op call.
Clinically reviewed by David Wild, MD, Chief Clinical Officer, Essential Anesthesia Management. This article is general information and doesn't replace advice from your own care team.
FAQ
Why does anesthesia make you nauseous? Certain anesthetic gases and opioid pain medication both play a role. Some people are simply more prone to it.
How long does nausea last after anesthesia? For most people it settles within hours. Tell your nurse or anesthesia team if it continues, because they can switch to a different medication.
Can you prevent nausea after general anesthesia? Often, yes. Your team can lower your risk and give preventive medication before you wake up.
Is nausea after surgery dangerous? Usually it's temporary and treatable. It can slow recovery, so let your care team know right away.
