Drug interactions
Enzalutamide + Lenacapavir
Severity: Contraindicated
Enzalutamide and Lenacapavir: contraindicated 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
Strong CYP3A inducers significantly lower lenacapavir concentrations, and labeling contraindicates the combination. This risks loss of virologic response and resistance.
What this interaction means in plain words
Enzalutamide and Lenacapavir are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Enzalutamide belongs to Endocrine; Lenacapavir belongs to Anti Virals.
Why it happens
Enzalutamide induces CYP3A4 (also P-gp and UGT), accelerating lenacapavir clearance.
What to do
Do not coadminister; use an alternative antiandrogen or antiretroviral. Monitor HIV RNA if exposure occurs.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Enzalutamide
- Doravirine + Enzalutamide Contraindicated
- Elbasvir / grazoprevir + Enzalutamide Contraindicated
- Ensitrelvir + Enzalutamide Contraindicated
- Enzalutamide + Fostemsavir Contraindicated
- Enzalutamide + Isavuconazonium Contraindicated
- Enzalutamide + Lonafarnib Contraindicated
Other interactions of Lenacapavir
- Apalutamide + Lenacapavir Contraindicated
- Carbamazepine + Lenacapavir Contraindicated
- Flibanserin + Lenacapavir Contraindicated
- Lenacapavir + Phenytoin Contraindicated
- Lenacapavir + Rifampicin Contraindicated
- Amobarbital + Lenacapavir Major
Frequently asked questions
Can I take Enzalutamide with Lenacapavir?
MediHelp rates the interaction as contraindicated. Enzalutamide and Lenacapavir are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Strong CYP3A inducers significantly lower lenacapavir concentrations, and labeling contraindicates the combination. This risks loss of virologic response and resistance.
How serious is the interaction between Enzalutamide and Lenacapavir?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not coadminister; use an alternative antiandrogen or antiretroviral. Monitor HIV RNA if exposure occurs.
What other medicines interact with Enzalutamide?
MediHelp also lists interactions of Enzalutamide with, for example, Doravirine, Elbasvir / grazoprevir, Ensitrelvir. The full list is on the Enzalutamide page.
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