Drug interactions
Ethanol + Secnidazole
Severity: Moderate
Ethanol and Secnidazole: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Alcohol taken with nitroimidazoles may cause a disulfiram-like reaction with flushing, nausea, vomiting, abdominal pain and headache. Secnidazole labeling advises avoiding alcohol during and shortly after therapy, although the reaction is less well documented than with metronidazole.
What this interaction means in plain words
Ethanol and Secnidazole can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Proposed inhibition of aldehyde dehydrogenase causing acetaldehyde accumulation; the mechanism is not firmly established for secnidazole.
What to do
Advise patients to avoid alcohol and ethanol- or propylene glycol-containing products during treatment and for 2 days after the last dose.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Frequently asked questions
Can I take Ethanol with Secnidazole?
MediHelp rates the interaction as moderate. Ethanol and Secnidazole can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Alcohol taken with nitroimidazoles may cause a disulfiram-like reaction with flushing, nausea, vomiting, abdominal pain and headache. Secnidazole labeling advises avoiding alcohol during and shortly after therapy, although the reaction is less well documented than with metronidazole.
How serious is the interaction between Ethanol and Secnidazole?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients to avoid alcohol and ethanol- or propylene glycol-containing products during treatment and for 2 days after the last dose.
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