Wegovy And Alcohol: Can You Drink While On Weight Loss Treatment?

Whether you’re meeting with friends, celebrating an achievement or at a company away day, you may be wondering if you can still enjoy an occasional alcoholic drink while taking Wegovy for weight management. Although alcohol isn’t listed as something that can weaken the effects of Wegovy, drinking it may worsen some of the common side effects like nausea or vomiting, so some people find it’s probably best to avoid it during treatment.

But what actually happens if you do drink alcohol while taking Wegovy? In this article, our experts explore the potential outcomes of mixing Wegovy and alcohol, the common side effects of medicated weight loss treatments and small adjustments you can make for a balanced diet.

Article summary:

• You may want to limit alcohol while taking Wegovy weight loss treatment, because some people find that it worsens side effects including nausea and vomiting, particularly in the early weeks of treatment or during dose increases.
• Alcohol doesn’t necessarily stop Wegovy from working, but it can impact your weight loss journey in other ways because of calorie intake and sugar content.
• Wegovy works best when used alongside healthy lifestyle changes, including a balanced, nutritious diet and regular movement.

What is Wegovy?

Originally developed for people with type 2 diabetes, Wegovy is a prescription weight loss treatment containing the active ingredient semaglutide. It’s available in the UK as a once-weekly injection, and most recently, in tablet form. [1]

It belongs to a group of medicines called GLP-1 receptor agonists. GLP-1 stands for glucagon-like peptide-1, a hormone that’s naturally produced by your gut after eating.

This hormone helps regulate several processes involved in appetite, digestion and blood sugar levels. [2]

GLP-1 medications such as Wegovy are designed to mimic the effects of this hormone to help slow down digestion, reduce hunger and regulate your blood sugar. [3]

Can you drink alcohol while taking Wegovy?

The NHS advises you not to drink any alcohol units when taking Wegovy, because it may worsen digestive side effects like nausea and vomiting. [4]

As much as you might enjoy it at the time, alcohol can sometimes leave you feeling more dehydrated afterwards. Experiencing this alongside the common side effects of semaglutide could make you feel even more drained. There’s a chance that drinking alcohol while taking Wegovy could worsen your symptoms.

What happens if you drink alcohol on Wegovy?

In the same way drinking alcohol affects people differently, the effects vary from person to person when Wegovy is involved.

Some people taking prescription weight loss medication may notice that their side effects feel worse after alcohol. You could experience:

• Nausea
• Dehydration
• Diarrhoea
• Digestive discomfort
• Constipation
• Dizziness
• Stomach aches

Wegovy is designed to slow down digestion, which is why most of the common side effects are related to your gut. Of course this doesn’t happen to everyone, but even just a couple of alcohol units could lead to a stomach sensitivity and make symptoms harder to manage. [5]

Does alcohol make Wegovy stop working?

No, alcohol doesn’t necessarily weaken the weight loss effects of Wegovy, but regular drinking may impact your results and overall weight management. [6]

Alcohol contains calories, and some of your favourite cocktails or alcoholic drinks may be high in sugar too. Whether you’re taking weight loss treatments like Wegovy or not, it’s still worth considering the role alcohol can play in your diet, eating habits and wellbeing. [7]

If you are going to drink alcohol, moderation and staying as hydrated as possible with water is important. Socialising and going for a night out with friends is great, but try your best to make regular exercise and quality rest a priority, too. At the end of the day, chasing perfection isn’t the goal. Balance is.

What can you drink instead of alcohol while taking Wegovy?

Naturally, water is the simplest and most favourable choice. You should aim to drink about 6-8 glasses of water a day, which is roughly 1.5 to 2 litres.

If you’re already prone to nausea and vomiting, or find that drinking alcohol while taking Wegovy has irritated your stomach more, consuming more water daily is very important.

If you want to choose something a little more interesting than water alone, why not try:

• Sparkling water
• Lemon water
• Herbal tea

Can you maintain a balanced diet if you drink alcohol on Wegovy?

You don’t need to overhaul your diet completely or make big changes to your eating or drinking habits. Making small adjustments to your diet is a great way to maintain a balanced approach, especially if you drink alcohol.

• Prioritise nutrition: Making your plates more colourful with vegetables and balancing out your meals with protein-rich foods is a healthier way to manage calorie intake through the day.
• Swap out your mixer: Some juices or soft drinks contain a lot of sugar, and when mixed with alcohol which has calories of its own, it’s easy to consume more calories than you want or need to. Instead, consider sugar-free alternatives, or soda water for a fizzy drink with fewer calories.
• Stay hydrated: Drinking plenty of water alongside alcohol is particularly helpful if you’re someone who experiences nausea or vomiting while taking Wegovy.

Is Wegovy safe to take?

Semaglutide is generally well tolerated, The most common side effects are digestive, such as nausea, diarrhoea, and constipation, which often subside over time as your body gets used to the medication. However, it’s not necessarily suitable for everyone.

There are many factors your healthcare professional may consider before prescribing you Wegovy or any other GLP-1 weight loss treatment. For example, your medical history, other medicines you’re currently taking, any health conditions, body mass index (or BMI) and pregnancy. [8] It’s very important to note that you shouldn’t take Wegovy during pregnancy or while breastfeeding. [9]

At MedExpress, we offer online consultations with regular clinical check-ins, and a range of weight loss treatments including Mounjaro Pen, Wegovy Pen, Wegovy Pill and Foundayo, and our team can help you find the right treatment for you.

References

1. British heart foundation. Wegovy: what you need to know about the weight-loss injection [Internet]. www.bhf.org.uk. 2024. Available from: https://www.bhf.org.uk/informationsupport/heart-matters-magazine/medical/ask-the-experts/wegovy
2. Solan M. Understanding new weight-loss drugs [Internet]. Harvard Health. 2023 [cited 2024 Jul 3]. Available from: https://www.health.harvard.edu/staying-healthy/understanding-new-weight-loss-drugs
3. Wegovy 0.25 mg, FlexTouch solution for injection in pre-filled pen - Summary of Product Characteristics (SmPC) - (emc) [Internet]. www.medicines.org.uk. Available from: https://www.medicines.org.uk/emc/product/13799/smpc#gref
4. NHS website. Semaglutide [Internet]. nhs.uk. 2026. Available from: https://www.nhs.uk/medicines/semaglutide/
5. Wegovy® Side Effects | Wegovy® (semaglutide) [Internet]. Wegovy.com. 2026. Available from: https://www.wegovy.com/obesity/is-wegovy-right-for-me/safety-side-effects.html
6. Klausen MK, Justesen SK, Pedersen JN, Rasmussen L, Jensen A, Jensen ME, et al. Once-weekly semaglutide versus placebo in patients with alcohol use disorder and comorbid obesity: a randomised, double-blind, placebo-controlled trial. The Lancet [Internet]. 2026;407(10540):1687–98. Available from: https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(26)00305-3/fulltext
7. NHS. Calories in alcohol [Internet]. nhs.uk. 2022. Available from: https://www.nhs.uk/live-well/alcohol-advice/calories-in-alcohol/
8. GOV.UK. GLP-1 medicines for weight loss and diabetes: what you need to know [Internet]. GOV.UK. 2025. Available from: https://www.gov.uk/government/publications/glp-1-medicines-for-weight-loss-and-diabetes-what-you-need-to-know/glp-1-medicines-for-weight-loss-and-diabetes-what-you-need-to-know
9. NHS website. Semaglutide [Internet]. nhs.uk. 2026. Available from: https://www.nhs.uk/medicines/semaglutide/