Drug interactions
Dutasteride-tamsulosin + Metronidazole
Severity: Minor
Dutasteride-tamsulosin and Metronidazole: 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
Metronidazole has weak or inconsistent CYP3A4 inhibition and no clear effect on tamsulosin or dutasteride exposure has been shown. Any effect is likely small.
What this interaction means in plain words
Dutasteride-tamsulosin and Metronidazole have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Dutasteride-tamsulosin belongs to Genitourinary; Metronidazole belongs to Anti Parasitic.
Why it happens
Possible weak CYP3A4 inhibition, not well established clinically.
What to do
No specific action is required; counsel on dizziness if it occurs.
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 Dutasteride-tamsulosin
Other interactions of Metronidazole
- Ethanol + Metronidazole Contraindicated
- Metronidazole + Pimozide Contraindicated
- Amiodarone + Metronidazole Major
- Disulfiram + Metronidazole Major
- Ergotamine + Metronidazole Major
- Lomitapide + Metronidazole Major
Frequently asked questions
Can I take Dutasteride-tamsulosin with Metronidazole?
MediHelp rates the interaction as minor. Dutasteride-tamsulosin and Metronidazole have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Metronidazole has weak or inconsistent CYP3A4 inhibition and no clear effect on tamsulosin or dutasteride exposure has been shown. Any effect is likely small.
How serious is the interaction between Dutasteride-tamsulosin and Metronidazole?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No specific action is required; counsel on dizziness if it occurs.
What other medicines interact with Dutasteride-tamsulosin?
MediHelp also lists interactions of Dutasteride-tamsulosin with, for example, Alfuzosin, Amifostine, Atazanavir. The full list is on the Dutasteride-tamsulosin page.
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