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Medicines metronidazoleQuestion & answer

metronidazole · Medicine question

Why must alcohol be avoided with metronidazole?

iatroX medicinesPublished 21 August 2026Reviewed 21 August 2026

The answer

Answer

Systemic metronidazole can react with alcohol and cause nausea, vomiting, flushing, abdominal pain, headache, breathlessness or palpitations.

Sources for this answer

NHSNHS · NHS medicine guidance

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The full medicine guide

metronidazole

Read the wider context, including uses, precautions and the sources behind this medicine guide.

Read the metronidazole guide

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