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Drug interactions

Belzutifan + Enzalutamide

Severity: Minor

Belzutifan and Enzalutamide: 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

Belzutifan can induce CYP3A4 and may lower exposure of sensitive CYP3A4 substrates, and enzalutamide is a CYP3A4 substrate but also mixed in effect. The net effect on enzalutamide is uncertain, and both are used in oncology with efficacy implications.

What this interaction means in plain words

Belzutifan and Enzalutamide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Belzutifan belongs to Miscellaneous; Enzalutamide belongs to Endocrine.

Evidence level: Low

Why it happens

Belzutifan may induce CYP3A4 and reduce substrate exposure; the net effect on enzalutamide is not well characterized.

What to do

Monitor clinical response and PSA where relevant; no empirical dose change is established.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Belzutifan with Enzalutamide?

MediHelp rates the interaction as minor. Belzutifan and Enzalutamide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Belzutifan can induce CYP3A4 and may lower exposure of sensitive CYP3A4 substrates, and enzalutamide is a CYP3A4 substrate but also mixed in effect. The net effect on enzalutamide is uncertain, and both are used in oncology with efficacy implications.

How serious is the interaction between Belzutifan and Enzalutamide?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor clinical response and PSA where relevant; no empirical dose change is established.

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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