Tirzepatide Nausea: Causes & Remedies

Key Takeaways:

• Nausea is the most common tirzepatide side effect.

• In Zepbound^® clinical trials, 25 to 28 percent of people reported nausea.

• Tirzepatide might cause nausea because it slows the movement of food through the digestive system.

• You can reduce tirzepatide nausea by avoiding fatty and greasy foods and eating smaller meals more regularly.
  

Tirzepatide (Mounjaro^®, Zepbound^®) comes with plenty of benefits. We’re talking better blood sugar levels for people with type 2 diabetes and weight loss for those with overweight and obesity. But, unfortunately, it also comes with nausea for some people.

You can get rid of tirzepatide nausea by eating smaller meals more often, avoiding drinks around meal times, and avoiding fatty foods.

Read on for more tips to reduce tirzepatide nausea, and learn why it happens in the first place.

It’s not entirely clear why tirzepatide causes nausea, but there are a few theories.

Tirzepatide Slows Digestion

First, tirzepatide delays gastric emptying. This means food stays in your stomach for longer and moves from your stomach to your small intestine more slowly.

This is one way tirzepatide works for weight loss. Delayed gastric emptying can increase feelings of fullness (satiety). But the slowed movement of food might also trigger occasional nausea for some people.

Tirzepatide Makes You Feel Full on Less Food

Another theory is that, since tirzepatide reduces your hunger and makes you feel fuller, you might experience this fullness as nausea and discomfort.

With this loss of appetite (or a significantly reduced appetite), it can take a while to get used to eating the right portion sizes on tirzepatide. You might experience nausea as you figure that out.

→ Related: How to Stop Overeating

Tirzepatide Activates Central Nervous System Receptors

Finally, tirzepatide is a glucagon-like peptide-1 (GLP-1) receptor agonist and a glucose-dependent insulinotropic polypeptide (GIP). That means it targets GLP-1 and GIP receptors in your body.

It’s thought that GLP-1 receptor agonists could trigger nausea when they activate GLP-1 receptors in the central nervous system.

Other GLP-1 medications — like semaglutide and liraglutide — can also cause nausea.

You can reduce tirzepatide nausea by eating smaller meals more often, avoiding triggering foods, and taking anti-nausea medication.

These tips apply whether you’re experiencing Mounjaro^® nausea or Zepbound^® nausea.

Here’s more detail on what to do to stop feeling sick on tirzepatide.

1. Eat Smaller, More Frequent Meals

If your usual portion sizes are making you feel queasy, try eating smaller meals more often throughout the day. For example, eat six small meals, rather than three large ones.

This can help you get all the nutrients you need but avoid getting overfull and nauseous. It can take trial and error to find new portion sizes that work for your body on tirzepatide, so hang in there.

2. Avoid Trigger Foods and Drinks

Some foods and drinks can trigger nausea on GLP-1s like tirzepatide.

Try avoiding or limiting:

• Fatty foods, like cheese, butter, and fatty meats

• Dairy

• Spicy foods

• Salty foods, like chips and processed meats

• Processed foods, like white bread, pastries, and ready-to-eat meals

• Caffeine

• Alcohol 

• Fizzy drinks

• Strong smells

Keep a food and symptom journal to figure out your personal triggers.

When you’re feeling queasy, eat bland foods that are easy to digest. Go for:

• Plain toast

• Apples

• Chicken

• Fish

• Potatoes

• Rice

• Peppermint

• Ginger-based drinks or chews

Wait 30 minutes after your tirzepatide shot before eating these foods.

→ Learn more: What to Eat on Mounjaro^®

3. Avoid Lying Down and Activity After Meals

What you do after eating can affect how nauseous you feel when taking tirzepatide. Avoid both lying down and vigorous activity after meals.

Also, try not to eat too close to bedtime — that way, you won’t lie down soon after eating.

After meals, you can sit comfortably or go for a gentle walk. Doing something distracting can help you ride the nausea wave. Try watching TV, listening to music, or reading, if it helps.

4. Avoid Drinks During Meals

Avoid drinks 30 to 60 minutes around meal times to see if that helps ease Mounjaro^® or Zepbound^® nausea.

Avoid drinking through straws, and minimize fizzy drinks, too.

Still, make sure you’re drinking enough water to stay hydrated throughout the day. Staying hydrated is especially important if you experience other tirzepatide side effects, like constipation, vomiting, heartburn, and diarrhea.

5. Only Eat When Hungry 

Tune into your body’s hunger cues. Eat only when you’re truly hungry and stop when you start feeling full.

If you struggle with stress eating — it happens to us all at some point! — try pausing before eating. Take a beat to consider whether physical hunger or emotion is driving your urge to eat.

How can you tell the difference?

“Physical hunger tends to show up in your stomach (e.g., with rumbling noises and even a little discomfort), whereas emotional hunger tends to show up in your mouth and mind (e.g., you may be salivating for a certain kind of food),” says Jessica Yu, Ph.D., a clinical psychologist and senior director of clinical excellence and outcomes at Hims & Hers.

Dr. Yu adds that when you’re physically hungry, any food will do. When you’re eating to soothe an emotion, you might crave one type of food, such as ice cream.

6. Follow Your Dose Escalation Plan

Your prescribing healthcare provider will start you on a low dose of tirzepatide that gradually increases every four weeks. Starting low and gradually upping the dose can reduce potential side effects — including nausea.

You might find that your nausea is worse when you first start taking Mounjaro^® or Zepbound^® and when your dose increases. But that typically gets better with time.

7. Try Anti-Nausea Medications

Anti-nausea medications can provide short-term relief from nausea.

You can get over-the-counter (OTC) anti-nausea medications like bismuth subsalicylate (Pepto Bismol^®) and dimenhydrinate (Dramamine^®).

There are also prescription anti-nausea medications like ondansetron (Zofran^®). Reach out to your healthcare provider to see if you’re eligible.

Anti-nausea medications are quick-acting, usually kicking in 30 to 60 minutes after you take them.

Reach out to your healthcare provider if you have severe tirzepatide nausea or if it isn’t getting any better.

Your healthcare provider might:

• Lower your dose. You’re less likely to feel nausea on lower doses. In clinical trials, 25 percent of people taking 5 milligrams (mg) of Zepbound^® reported nausea compared to 28 percent taking 15 mg.

• Keep you on your current dose for longer. If you’re in the dose escalation phase, staying on your current dose for longer gives your body more time to adjust.

• Prescribe anti-nausea medications. Your provider might prescribe anti-nausea medication like ondansetron, if it’s right for you. They might also recommend other lifestyle changes to help reduce nausea.

• Suggest switching to a different weight loss medication. If tirzepatide nausea really doesn’t get better, your provider might suggest a different weight loss injection, like Ozmepic^® or Wegovy^®, or a non-GLP-1 like metformin.

If you get tirzepatide through Hers, you can reach out to your Care Team through the Hers app at any time, day or night. Discuss side effects, get advice, and get tweaks to your treatment plan, if needed.

You should also reach out to a healthcare professional if your tirzepatide nausea is accompanied by:

• Severe, sharp stomach pain

• Stomach pain that radiates into your back

• Vomiting

This could be a sign of an inflamed pancreas (pancreatitis).

And finally, get medical advice if you feel nauseous and experience vomiting and upper-right abdominal pain. These are signs of gallstones.

Problems with your pancreas and gallbladder are rare but serious side effects of tirzepatide, so it’s worth getting checked just in case.

For some people, Mounjaro^® nausea and Zepbound^® nausea are, unfortunately, part of the deal when it comes to taking tirzepatide.

Here are the key points to keep in mind:

• Nausea is a common side effect of tirzepatide. The drug might cause nausea via delayed stomach emptying, making you feel overfull and queasy.

• Tweak your eating habits to reduce tirzepatide nausea. Try eating smaller meals, limiting fatty and greasy foods, and avoiding drinks 30 to 60 minutes around meal times.

• Anti-nausea medications can help. Try OTC options or reach out to your healthcare provider about prescription medications like ondansetron.

Finally, hang in there. For many people, the gastrointestinal side effects of tirzepatide clear up with time, and the health benefits are well worth it. You might start feeling better and better as the weeks go on.

Get answers to frequently asked questions about tirzepatide nausea.

How long does tirzepatide nausea last?

Research shows that tirzepatide side effects mainly happen during the dose escalation phase. This can last two to six months, depending on which maintenance dose you stop at. This doesn’t mean you’ll feel nauseous for months, but nausea might crop up during those months.

How to prevent nausea on tirzepatide?

You can prevent nausea on tirzepatide by eating smaller meals, limiting greasy and fatty foods, and avoiding drinks 30 to 60 minutes around mealtimes. Avoiding lying down and doing physical activity after meals can also help you not feel sick on tirzepatide.

What foods make you nauseous on tirzepatide?

Greasy, fatty, salty, spicy, sweet, and processed foods can make you nauseous on tirzepatide. Avoid foods like white bread, pastries, sausages, and fries on tirzepatide to minimize nausea.

Should I stop tirzepatide if I’m nauseous?

Depending on how severe your nausea is, you don’t necessarily have to stop taking tirzepatide if you’re nauseous. Tweaking your eating habits, taking anti-nausea medication, giving your body more time to adjust, or lowering your dose could help ease nausea.

If you have severe nausea, you might be better off stopping tirzepatide and trying a different weight loss medication, like Ozmepic^®, Wegovy^®, or metformin.

This article is for informational purposes only and does not constitute medical advice. The information contained herein is not a substitute for and should never be relied upon for professional medical advice. Always talk to your doctor about the risks and benefits of any treatment. Learn more about our editorial standards.