Can You Drink Alcohol While Taking Mounjaro or Wegovy?
- Millers Pharmacy Health Team
- Jul 9
- 3 min read

If you're taking Mounjaro® (tirzepatide) or Wegovy® (semaglutide) for weight loss, one of the first questions you're likely to ask is: "Can I still drink alcohol?"
The short answer is yes - for most people, alcohol isn't completely off limits.
However, there are several important things you should know before reaching for that next glass of wine or pint. Alcohol can increase side effects, slow your weight loss progress and, in some cases, make you feel significantly worse while taking these medications.
Here's what our pharmacists want you to know.
Is alcohol safe with Mounjaro or Wegovy?
There is no direct interaction between alcohol and either Mounjaro or Wegovy, meaning alcohol is not officially prohibited while taking these medications.
However, both medicines work by slowing how quickly your stomach empties and reducing your appetite. Alcohol can sometimes amplify the digestive side effects that are already common when starting treatment.
For many patients, that means they simply tolerate alcohol less well than they used to.
Alcohol may make side effects worse
The most common side effects of GLP-1 medicines include:
Nausea
Vomiting
Heartburn or acid reflux
Bloating
Indigestion
Diarrhoea or constipation
Alcohol - particularly in larger quantities - can make many of these symptoms worse.
If you've recently started treatment or have just increased your dose, it may be worth avoiding alcohol until you know how your body responds.
Alcohol contains more calories than many people realise
One of the biggest reasons people take Mounjaro or Wegovy is to lose weight.
Unfortunately, alcohol can quickly undo some of that hard work.
For example:
A large glass of wine contains around 230 calories
A pint of premium lager contains approximately 250 calories
Cocktails can easily exceed 300–500 calories depending on what's added
These calories provide very little nutritional value and can make it harder to maintain the calorie deficit needed for successful weight loss.
You may find you naturally drink less
Interestingly, many patients tell us they simply don't enjoy alcohol as much once they've started treatment. Researchers are currently investigating whether GLP-1 medicines may reduce cravings for alcohol in some people, although more evidence is needed before this can be confirmed.
Many patients report:
Feeling full after just one drink
Losing interest in finishing alcoholic drinks
Drinking less without consciously trying
Everyone's experience is different, but it is something our pharmacists hear regularly.
Stay hydrated
Both alcohol and GLP-1 medicines can increase your risk of dehydration.
Dehydration may contribute to:
Headaches
Dizziness
Constipation
Fatigue
If you do choose to drink alcohol:
Drink plenty of water before, during and afterwards.
Avoid drinking on an empty stomach.
Know your limits—many people find they become full or feel unwell much sooner than expected.
Are there any people who should avoid alcohol completely?
Your pharmacist or prescriber may recommend avoiding alcohol if you:
Are experiencing significant nausea or vomiting.
Have developed pancreatitis or have a history of pancreatitis.
Have liver disease.
Are becoming dehydrated.
Are struggling to tolerate your medication.




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