Surgeons on Zepbound: Managing Side Effects in the Operating Room

Few jobs are as unforgiving of a queasy stomach as working in an operating room. Once you are scrubbed in, you cannot step away for a snack, a drink, or a bathroom break without breaking scrub and finding cover. Cases run long, add-ons push lunch into the evening, and some procedures involve standing for hours in a lead apron.

Surgeons, anesthesia staff, OR nurses, and surgical technologists all take Zepbound or compounded tirzepatide. Most manage well, but it takes more planning than in a job where you can leave the room. This guide covers timing, eating, and what to do when side effects meet the schedule.

Timing your injection around your OR days

Understanding the medication’s timing is the most useful tool you have. The Zepbound prescribing information gives the median time to maximum concentration as 24 hours after a dose, with a range of 8 to 72 hours, and an elimination half-life of about five to six days in people with overweight or obesity.

In practice, that means many people notice side effects most in the first day or two after their injection, and that changes to your injection day take a while to settle into a new pattern.

Map your week. If your long OR days are Tuesday and Thursday, an injection on Monday evening puts your first long day right in the likely hardest window. An injection on Friday or Saturday, so the first couple of days fall on the weekend, often works better.

Change your day properly. The Zepbound label allows the day of weekly administration to be changed as long as there are at least three days between two doses. Ask your provider how to make the switch.

Keep the new day consistent once it works.

Never step up before a heavy block

The weeks after a dose increase are when side effects tend to be strongest. Ask your provider to schedule increases before a lighter week, vacation, or a run of clinic days rather than a heavy operating block. Our guide on when to increase your tirzepatide dose covers how those decisions are usually made.

If you are just starting, our guide on the starting dose of tirzepatide covers why the early weeks often bring the strongest digestive side effects. Many people choose to start during a lighter rotation.

Eat before you scrub

On an appetite-suppressing medication, it is easy to start a 7:30 a.m. case with coffee alone and finish a long case at 2 p.m. having eaten nothing. That is a common route to lightheadedness at the table.

Eat a light breakfast with protein before your first case, even if you are not hungry. Something simple and familiar.

Avoid a heavy or greasy meal right before a long case.

Eat between cases, even a few bites, with protein. Keep something in your locker or the lounge.

Drink water before you scrub and between cases.

Go easy on coffee on an empty stomach.

If you feel unwell during a case

Lightheadedness, sweating, nausea, or feeling faint at the table are signals to act on, not to push through.

Tell your team early. Ask for a stool, a sip of something through a straw from a circulator, or to scrub out briefly while someone covers.

Plan backup in advance with your team for long cases, especially in the first weeks of treatment or after a dose increase.

Never compromise patient safety to avoid an awkward moment. Everyone in the room would rather you step out than faint.

Digestive side effects and long cases

Diarrhea and nausea are common side effects of tirzepatide, particularly early on. If they are affecting your ability to work, tell your provider. Pacing dose increases more slowly, adjusting what and when you eat, and timing your injection differently can all help. Our guide comparing tirzepatide and semaglutide side effects covers how the two compare, and our guide on what to eat after your Ozempic injection has simple food ideas that work on either medication.

Call nights

Overnight call brings irregular meals, little sleep, and emergency cases at 3 a.m. Keep simple protein snacks available, eat at regular intervals rather than waiting for a gap that may not come, and protect sleep when you can.

If you need surgery or sedation yourself

You will know this already, but it bears repeating for yourself: tell your own anesthesia team that you take Zepbound well in advance. The Zepbound label includes a warning about pulmonary aspiration during general anesthesia or deep sedation.

Consider this scenario: a surgeon on Zepbound injects every Sunday evening and steps up their dose the same weekend before a Monday with two long cases. They have only coffee before a 7:30 a.m. start, skip lunch between cases, and two hours into the afternoon case feel nauseated, sweaty, and lightheaded. Moving the injection to Friday, holding the increase until a lighter week, eating breakfast and something between cases, and agreeing backup in advance would very likely have prevented it.

The short version

Use the medication’s timing: side effects often peak in the day or two after a dose, so arrange your injection day so long OR days fall outside that window, changing days with at least three days between doses. Hold dose increases before heavy blocks. Eat a light breakfast with protein before scrubbing and something between cases. Tell your team early if you feel unwell, and plan backup for long cases. Tell your own anesthesia team you take Zepbound.

If you want a provider who understands demanding clinical schedules, TrimRx includes ongoing provider access alongside treatment.

This information is for educational purposes and is not medical advice. Consult with a healthcare provider before starting any medication. Individual results may vary.