Drug interactions
Flutamide + Pretomanid
Severity: Major
Flutamide and Pretomanid: major 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
Pretomanid-containing regimens are associated with hepatotoxicity, and flutamide also carries a boxed warning for liver injury. Combined use may increase the chance of serious liver damage.
What this interaction means in plain words
Flutamide and Pretomanid can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Flutamide belongs to Endocrine; Pretomanid belongs to Anti Bacterial.
Why it happens
Additive hepatotoxicity.
What to do
Avoid flutamide during pretomanid therapy and use another antiandrogen if needed. If unavoidable, monitor liver enzymes frequently.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Flutamide
- Flutamide + Idelalisib Major
- Flutamide + Levoketoconazole Major
- Flutamide + Pexidartinib Major
- Flutamide + Valoctocogene roxaparvovec Major
- Apalutamide + Flutamide Moderate
- Bupivacaine implant + Flutamide Moderate
Other interactions of Pretomanid
Frequently asked questions
Can I take Flutamide with Pretomanid?
MediHelp rates the interaction as major. Flutamide and Pretomanid can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Pretomanid-containing regimens are associated with hepatotoxicity, and flutamide also carries a boxed warning for liver injury. Combined use may increase the chance of serious liver damage.
How serious is the interaction between Flutamide and Pretomanid?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid flutamide during pretomanid therapy and use another antiandrogen if needed. If unavoidable, monitor liver enzymes frequently.
What other medicines interact with Flutamide?
MediHelp also lists interactions of Flutamide with, for example, Idelalisib, Levoketoconazole, Pexidartinib. The full list is on the Flutamide page.
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