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Can you drink alcohol-free beer on antibiotics or medication?

By Alex Stewart

Updated 1 November 2026. Every figure links to its source below. How these pages are made.

Tablets beside a glass of water
Illustrative image
Quick answerWith most common antibiotics, the NHS says moderate drinking is unlikely to cause problems, so alcohol-free beer is usually fine. Two need care: avoid alcohol completely with metronidazole and tinidazole, and the NHS warns that linezolid reacts with fermented drinks such as beer. Functional beers add their own warnings. Ask your pharmacist.

What the NHS says

It's a good idea to avoid drinking alcohol when taking medicine or feeling unwell. But it's unlikely that drinking alcohol in moderation will cause problems if you're taking the most common antibiotics.
MedicineNHS advice
Most common antibioticsModerate drinking unlikely to cause problems
MetronidazoleNo alcohol during treatment and for 48 hours after
TinidazoleNo alcohol during treatment and for 72 hours after
LinezolidCan be affected by fermented drinks such as beer and lager

The NHS does not say whether 0.5% beer is acceptable with metronidazole. Because the advice is to avoid alcohol completely, a 0.0% drink or water is the safe choice. The linezolid warning is about fermented drinks, so it may apply to alcohol-free beer too; check with your pharmacist.

Where IMPOSSIBREW fits

IMPOSSIBREW, which publishes this site, adds ashwagandha, L-theanine and magnesium to its beers. Its own label says they are not recommended if you take any medication, including antidepressants, MAO inhibitors, blood thinners or SSRIs, or have heart disease, hypertension or a GI disorder. Finish the course first.

This page summarises published guidance and research. It is not medical advice.

FAQs

Can I drink alcohol-free beer on antibiotics?

With most common antibiotics, usually yes. Avoid it with metronidazole and tinidazole, and check with linezolid, which reacts with fermented drinks.

Can I drink 0.5% beer on metronidazole?

The NHS says avoid alcohol completely during treatment and for 2 days after. Choose a 0.0% drink or water and ask your pharmacist.

Can I drink IMPOSSIBREW on antidepressants?

IMPOSSIBREW’s label says it is not recommended if you take antidepressants, MAO inhibitors, SSRIs or blood thinners.

Sources

All read 1 November 2026 unless stated.

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