Can you drink alcohol on Mounjaro?

Yes, you can drink alcohol while taking Mounjaro. Alcohol isn’t listed as an interaction in the official Mounjaro product information, but it’s still worth being mindful of how drinking makes you feel during treatment.

Alcohol can affect your blood sugar and may make common side effects such as nausea, vomiting or diarrhoea harder to manage. It also adds calories without providing much nutritional value, which may be worth considering while you’re working towards your weight loss goals.

That doesn’t mean your social life has to stop when you start Mounjaro. In this guide, we’ll look at how alcohol can affect you during treatment and share practical tips for drinking more comfortably if you choose to.

What happens when you mix Mounjaro with alcohol?

There’s no known direct interaction between Mounjaro and alcohol. The concern is more about how their effects can overlap.

Mounjaro’s most common side effects are digestive, including nausea, diarrhoea, vomiting, constipation, and stomach pain. The NHS explains that alcohol can also irritate the lining of your stomach and increase stomach acid, which can also cause stomach pain, nausea, or vomiting.

Can alcohol make Mounjaro side effects worse?

It can. If Mounjaro is already making you feel nauseous or giving you digestive symptoms such as vomiting or stomach discomfort, drinking alcohol may leave you feeling worse and make those side effects harder to manage.

Dehydration is another thing to be mindful of. Vomiting and diarrhoea can cause you to lose fluids, while alcohol can make you pee more frequently. If you do choose to drink, keeping hydrated is particularly important.

There’s also a small risk of pancreatitis (inflammation of the pancreas) while taking Mounjaro, and drinking too much alcohol can also increase your risk of pancreatitis. Seek urgent medical help if you develop severe, persistent pain in your stomach that may spread to your back.

Does Mounjaro stop alcohol cravings?

Some people report wanting to drink less alcohol while taking Mounjaro, but the medication is not licensed to treat alcohol cravings and more research is needed. If you’re worried about your drinking habits, speak to your GP or call the UK Drinkline at 0300 123 1110 (weekdays 9am to 8pm, weekends 11am to 4pm).

Can you lose weight on Mounjaro if you drink alcohol?

Yes, but alcohol can make it harder. Drinking doesn’t necessarily mean Mounjaro will stop working, but it can make it more difficult to stay in a calorie deficit.

According to the NHS, alcohol has almost the same number of calories per gram as fat, and gives you no protein, vitamins, or minerals. Mixers can add extra sugar too, and the calories in drinks can add up quickly, without us even realising.

However, one night out will not undo your progress. Weight loss is shaped by your habits over weeks and months, not a single social occasion.

Does alcohol increase your appetite on Mounjaro?

It can, but not because it interacts in any particular way with the medication. While drinking, it’s harder to go for nutritious foods, especially when bar food like crisps and roasted peanuts is within reach. And who can forget about the cheeky kebab or cheesy chips after a night out? Often, it’s the combination that adds up: a few drinks, some bar snacks, a late-night takeaway, and feeling less inclined to stick to your usual routine the next day.

Mounjaro, alcohol and diabetes: what should you know?

If you’re living with type 2 diabetes, it’s worth taking extra care. The NHS explains that alcohol can increase the risk of hypoglycaemia (low blood glucose, also called a hypo) if you take insulin or certain diabetes tablets. This is because your liver is busy processing the alcohol, so it releases less glucose into your blood.

The EMC also notes that taking Mounjaro alongside insulin or a sulphonylurea (a type of diabetes tablet) can increase your risk of a hypo.

How to spot a hypo

Warning signs of a hypo listed in the Mounjaro patient leaflet include:

• headache
• drowsiness or weakness
• dizziness
• feeling hungry
• confusion or irritability
• a fast heartbeat
• sweating

A hypo can look like you’re drunk, and alcohol can make you less aware of hypo symptoms. A hypo the next day can also feel similar to a hangover. Speak to your GP if you’re worried about hypoglycaemia.

Drinking more safely with diabetes

The NHS recommend:

• Keeping to no more than 14 units of alcohol a week, spread across 3 or more days.
• Avoiding drinking on an empty stomach or replacing meals with alcohol.
• Choosing lower-alcohol options where possible.
• Limiting sugary drinks, including sweet wines, ciders, liqueurs and alcopops.
• Opting for sugar-free, diet or slimline mixers.
• Remembering that low-alcohol drinks can still contain sugar.
• Alternating alcoholic drinks with low-sugar, alcohol-free options and water.
• Having something starchy to eat if you’re drinking over a longer period
• Being mindful that alcohol contains calories, particularly if you’re working towards a weight loss goal.

Tips for drinking alcohol on Mounjaro

If you choose to drink, these simple steps can help you stay comfortable and on track.

Eat something first

Try not to drink on an empty stomach. As Mounjaro helps you feel fuller, a small, balanced meal before you head out may feel easier than a large one.

Stay hydrated

The Mounjaro patient leaflet advises drinking plenty of fluids to avoid dehydration. So, how much water should you drink on Mounjaro? There’s no set amount, but the NHS recommends about 6-8 cups a day (approximately 1.5-2l) of fluid a day, with water being the best choice. Explore our guide to hydration and weight loss for more tips.

When drinking, try sipping on water between alcoholic drinks. Drinking water can help keep you hydrated when you're drinking alcohol, although it may not completely prevent a hangover.

Pace yourself

Knowing your limits can help. The NHS alcohol consumption guidelines are:

• No more than 14 units of alcohol weekly for both men and women, where one unit is 10ml / 8g of pure alcohol.
• If you regularly drink 14 units of alcohol weekly, spread them over 3 days or more.

The World Health Organisation is also clear that there’s no level of alcohol use that’s safe for health.

Try alcohol-free alternatives

Alcohol-free beers, wines, and mocktails mean you can still join in, without the alcohol. They’re handy if your side effects are playing up. Our partner nutritionist, Lisa Marley, has listed her favourite alcohol-fee beverages in this guide, if you need some inspiration for a Friday evening nightcap.

“A social occasion doesn’t have to feel off-limits while you’re taking Mounjaro. Eating before you go out, alternating alcohol with water and taking it slowly can all help. Pay attention to how you’re feeling too. If side effects are bothering you, choosing an alcohol-free drink may simply feel better that day.”

Niya MansuriPrescribing Pharmacist

What is the best alcohol to drink on Mounjaro?

There’s no single best alcohol to drink on Mounjaro. But if you’re wondering what alcohol you can drink on Mounjaro while staying on track with your weight loss goal, some choices may make it easier:

• spirits with a sugar-free or diet mixer
• smaller measures, such as a small (100 millilitre) glass of wine instead of a large one – you can mix your wine with some sparkling water for a refreshing spritz or if you want to make a smaller glass last longer
• fewer beers and cocktails, which can contain a large amount of carbohydrates

When should you avoid alcohol on Mounjaro?

Certain situations might require you to avoid alcohol completely. These include:

• You’re already experiencing Mounjaro side effects: If you’re dealing with nausea, vomiting, or diarrhoea, alcohol may make you feel worse and add to the risk of dehydration. It is best to give it a miss until you feel better.
• You’ve recently started Mounjaro or changed dose: The EMC reports that nausea, vomiting, and diarrhoea are more common while your dose is being increased, and ease over time. Waiting until you know how your body responds can make drinking more comfortable.
• You’re at increased risk of hypoglycaemia: If you take insulin or a sulphonylurea alongside Mounjaro, alcohol may further increase your risk of a hypo. Speak to your doctor before drinking.
• You have a history of pancreatitis or another condition affected by alcohol: Mounjaro has not been studied in people with a history of pancreatitis, so it should be used with caution. The NHS advises that people who’ve had alcohol-related acute pancreatitis should avoid alcohol completely.

If you have any condition affected by alcohol, or are simply wondering whether you should avoid alcohol completely, speak to our IMC-registered doctors for advice.

Get support throughout your treatment

Enjoying a social life and losing weight can go hand in hand. With a little planning, the occasional drink can fit around your treatment.

For more information on what to expect, check out our guide to Mounjaro side effects.

And if side effects become hard to manage, you don’t have to deal with them alone. Every myBMI treatment plan includes ongoing support from our clinical team, as well as free medication to help manage certain side effects if deemed appropriate.

Sources

• Alcohol hangover versus dehydration revisited: The effect of drinking water to prevent or alleviate the alcohol hangover. (2024) Alcohol. [Accessed 30 September 2026]
• Semaglutide and Tirzepatide reduce alcohol consumption in individuals with obesity. (2023) Scientific Reports. [Accessed 1 October 2026]
• Mounjaro KwikPen 2.5mg solution for injection in pre-filled pen - Summary of Product Characteristics (SmPC) (2026) EMC. [Accessed 1 October 2026]
• Gastritis (2026) NHS. [Accessed 1 October 2026]
• Alcohol and pancreatitis (date unknown) NHS. [Accessed 1 October 2026]
• Acute pancreatitis (2026) NHS. [Accessed 1 October 2026]
• Calories in alcohol (2023) NHS. [Accessed 1 October 2026]
• Diabetes and Alcohol (2025) University Hospitals Sussex NHS Foundation Trust [Accessed 1 October 2026]
• Mounjaro: EPAR-Product Information-tracked changes (2026) EMC. [Accessed 1 October 2026]
• Water, drinks and hydration (2023) NHS. [Accessed 1 October 2026]
• The risks of drinking too much (2026) NHS. [Accessed 1 October 2026]