Does Mounjaro Cause Hair Loss?

There's no complete ban on consuming alcohol while you're using Mounjaro (tirzepatide). However, drinking can make the side effects of Mounjaro - including vomiting, dehydration, and nausea - easier to manage.

If you use insulin or a sulfonylurea such as gliclazide, alcohol can impact your blood sugar levels. Plus, the extra calories can affect your weight-loss progress.

So, if you have a special occasion like a wedding, holiday, or a simple meal out coming up, it's not about whether alcohol is allowed. Instead, it's about how much you drink, whether you're taking other medicines, if you've eaten, and how well you tolerate Mounjaro.

In this guide, we'll provide information about drinking alcohol while using tirzepatide. However, you should speak to your prescriber or pharmacist for personalised advice regarding alcohol intake.

What Changes When You Drink Alcohol On Mounjaro (tirzepatide)?

There's no listed interaction between alcohol and Mounjaro in the UK prescribing information, but it's important to remember that tirzepatide delays gastric emptying, causes gastrointestinal side effects, and reduces your appetite. Drinking alcohol might feel different than before you began treatment.

Tirzepatide is both a GLP-1 and GIP receptor agonist. Because it delays gastric emptying (when food moves from the stomach to the small intestine), the UK Summary of Product Characteristics (SmPC) outlines that it can impact how your body absorbs oral medicine.

The effects are more pronounced when treatment begins and during dosage increases (NIH). However, this doesn't prove that tirzepatide alters ethanol absorption, as the SmPC refers only to oral medicines.

So, you should think about three different issues:

1. Blood glucose
2. Gastrointestinal symptoms
3. How much alcohol you consume

There's no conclusive evidence to say that everyone using Mounjaro will become intoxicated quicker than before, but your previous tolerance levels might not be useful indicators if you're eating less than you did before treatment.

What About Low Blood Sugar?

If you're also using insulin or an insulin secretagogue such as a sulfonylurea, the risk of hypoglycaemia increases, and the weight-loss medication's SmPC provides specific warnings about this combination.

Consuming alcohol can cause additional problems, as the liver focuses on processing alcohol, which can impact its ability to release stored glucose when your blood sugar levels are decreasing.

Alcohol creates an additional problem because the liver prioritises processing alcohol, reducing its ability to release stored glucose when blood glucose is falling. Warnings from Diabetes UK clearly state that alcohol can increase your risk of hypoglycaemia when using sulfonylureas or insulin.

When blood glucose levels fall below 4 mmol/L, this generally symbolises a hypo. Common symptoms might include hunger, palpitations, sweating, shaking, and problems concentrating.

Plus, when you drink alcohol, you might confuse the symptoms of hypoglycaemia with being drunk.

It's advisable to speak to your pharmacist or diabetes treatment team for personalised advice about drinking safely and monitoring your blood glucose levels.

Why Does Alcohol Make Nausea Worse On Mounjaro?

Mounjaro is recognised for gastrointestinal side effects including vomiting and nausea, but alcohol can also irritate the digestive system. So, drinking alcohol when you're using Mounjaro can make your digestive symptoms worse.

Some people may also develop abdominal distention, GERD (Gastroesophageal reflux disease), and dyspepsia. The SmPC says that gastrointestinal effects are typically worse during dose escalations, and you should be cautious about adding alcohol in these cases.

Alcohol comes with an increased risk of dehydration - especially if Mounjaro is already causing diarrhoea and vomiting, or your appetite is reduced.

With the established effects of tirzepatide, drinking the same amount as you did before beginning your weight loss journey may have more pronounced symptoms.

Please note that these are general principles, not proven studies. However, eating before you drink alcohol and alternating alcoholic drinks with water or non-alcoholic drinks can reduce the risks.

Frequent vomiting, an inability to retain fluids, and severe abdominal pain shouldn't automatically be thought of as a Mounjaro hangover.

Does Drinking Alcohol Slow Weight Loss on Mounjaro?

Alcohol doesn't switch off Mounjaro's GIP and GLP-1 activity, but alcohol affects your calorie intake, which can make weight loss more complicated:

• The Calories: Alcohol has 7 calories per gram on average, but this doesn't include the added calories from mixers or other ingredients.
• Appetite: It's a known fact that alcohol impacts your food choices. Research shows that people are more likely to crave and consume high-sugar, high-calorie foods when they drink, which can limit weight-loss progress (PubMed).

However, there's no conclusive evidence to say that alcohol will pharmacologically switch off the effects of tirzepatide. One night out of light to moderate drinking won't stop the treatment from working, but regular or heavy drinking can limit your ability to lose weight.

UK guidance says that men and women who drink regularly should keep their consumption to 14 units per week, spread across at least three days. This is classed as low-risk rather than risk-free drinking (NHS).

Which Factors Make Drinking On Mounjaro Riskier For Me Specifically?

Your individual risk profile depends on multiple factors, not just your Mounjaro dose. These include whether you're taking other medications to manage diabetes, your alcohol use, dietary choices, and whether you have an existing medical condition.

Each of these factors can also stack. For example, if someone taking gliclazide with an increased Mounjaro dose eats less but drinks alcohol, they have multiple risk factors that operate at once.

Who Needs To Be Most Careful About Drinking On Mounjaro?

People with a history of pancreatitis, gallbladder issues, or individuals using a sulfonylurea or insulin need to be particularly careful when drinking alcohol.

• Sulfonylureas and Insulin: If you use other diabetes treatments, there's a higher risk of hypoglycaemia. It's best to speak to your treatment team for advice, instead of skipping or changing doses to accommodate drinking.
• Gallbladder and Pancreas Problems: Tirzepatide isn't recommended for people with a history of pancreatitis, gallstones, or gallbladder inflammation (cholecystitis).

If you have a history of gallbladder disease, gallstones, pancreatitis, or a digestive disorder, please speak to your prescriber as the drinking advice might be different.

If Controlling Your Drinking Is Difficult

If you're a heavy drinker or experience alcohol cravings, you should inform your prescriber. They can offer personalised advice and discuss the risks.

People with a physical alcohol dependence shouldn't stop without medical guidance, as it can cause dangerous symptoms. Your healthcare provider can refer you to local alcohol support services.

Should You Time Your Mounjaro Injection Around Drinking?

No official waiting period says you should wait a set amount of time between drinking alcohol and Mounjaro injections.

But it's important to consider how you feel, whether your dosage has increased, whether you're taking medicines that lower your glucose levels, and what you eat.

While the UK prescribing information doesn't give an alcohol-specific interval after each injection, it does clearly say that gastrointestinal effects often increase during dose escalations.

Because Mounjaro is a once-weekly injection, you can change your dose when there are at least three days between doses, but if you miss a dose and it's been four days, you should skip the missed dose.

However, these are general instructions for managing your treatment and not guidelines for drinking. You should never skip an injection because you want to drink.

Tips Before Drinking:

• Eat before you plan on consuming alcohol.
• Alternate alcohol with water.
• Think about the side effects you're currently experiencing on your current dose.
• Monitor your blood glucose levels when using other diabetes treatments.
• Ensure you're with someone who knows how to recognise a hypo if there's a risk.

When To Speak To Your Prescriber Or Pharmacist

If you're using insulin, a sulfonylurea, or medications that lower glucose, speak to your pharmacist. People with a history of gallbladder or pancreas problems should also seek advice.

Healthcare professionals and patients can report all suspected side effects of Mounjaro to the MHRA Yellow Card scheme.