Drug interactions
Conjugated estrogens vaginal + Nilutamide
Severity: Minor
Conjugated estrogens vaginal and Nilutamide: 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
Systemic absorption of vaginal conjugated estrogens is low, and any increase from nilutamide would be small. Clinically meaningful interaction is unlikely.
What this interaction means in plain words
Conjugated estrogens vaginal and Nilutamide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Theoretical CYP3A4 inhibition by nilutamide slowing estrogen metabolism.
What to do
No action is needed beyond routine monitoring for estrogen adverse effects.
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 Nilutamide
Frequently asked questions
Can I take Conjugated estrogens vaginal with Nilutamide?
MediHelp rates the interaction as minor. Conjugated estrogens vaginal and Nilutamide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Systemic absorption of vaginal conjugated estrogens is low, and any increase from nilutamide would be small. Clinically meaningful interaction is unlikely.
How serious is the interaction between Conjugated estrogens vaginal and Nilutamide?
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 action is needed beyond routine monitoring for estrogen adverse effects.
What other medicines interact with Nilutamide?
MediHelp also lists interactions of Nilutamide with, for example, Dihydroergotamine intranasal, Mavacamten, Artemether / lumefantrine. The full list is on the Nilutamide page.
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