Drug interactions
Isoniazid + Zolpidem
Severity: Minor
Isoniazid and Zolpidem: minor 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
Isoniazid may weakly inhibit CYP3A4, a main route of zolpidem metabolism, and could modestly increase zolpidem exposure. This may amplify sedation and impaired next-morning alertness.
What this interaction means in plain words
Isoniazid and Zolpidem have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Isoniazid belongs to Anti Bacterial; Zolpidem belongs to Central Nervous System.
Why it happens
Weak CYP3A4 inhibition by isoniazid may reduce zolpidem clearance.
What to do
Use the lowest effective zolpidem dose and advise against driving if drowsiness persists.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Isoniazid
Other interactions of Zolpidem
Frequently asked questions
Can I take Isoniazid with Zolpidem?
MediHelp rates the interaction as minor. Isoniazid and Zolpidem have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Isoniazid may weakly inhibit CYP3A4, a main route of zolpidem metabolism, and could modestly increase zolpidem exposure. This may amplify sedation and impaired next-morning alertness.
How serious is the interaction between Isoniazid and Zolpidem?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective zolpidem dose and advise against driving if drowsiness persists.
What other medicines interact with Isoniazid?
MediHelp also lists interactions of Isoniazid with, for example, Bacillus calmette-guerin substrain tice, Benzhydrocodone / acetaminophen, Carbamazepine. The full list is on the Isoniazid page.
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