Drug interactions
Estradiol + Miconazole vaginal
Severity: Minor
Estradiol and Miconazole vaginal: 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
Vaginal miconazole has limited systemic absorption but can inhibit CYP3A4 in principle. Clinically relevant increases in estradiol are unlikely.
What this interaction means in plain words
Estradiol and Miconazole vaginal 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
Weak systemic CYP3A4 inhibition from absorbed miconazole.
What to do
No adjustment is generally needed; monitor for estrogenic effects if prolonged or repeated courses are used.
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 Estradiol
- Anastrozole + Estradiol Contraindicated
- Estradiol + Fezolinetant Contraindicated
- Estradiol + Ospemifene Contraindicated
- Antithrombin alfa + Estradiol Major
- Antithrombin iii + Estradiol Major
- Estradiol + Exemestane Major
Frequently asked questions
Can I take Estradiol with Miconazole vaginal?
MediHelp rates the interaction as minor. Estradiol and Miconazole vaginal have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Vaginal miconazole has limited systemic absorption but can inhibit CYP3A4 in principle. Clinically relevant increases in estradiol are unlikely.
How serious is the interaction between Estradiol and Miconazole vaginal?
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 adjustment is generally needed; monitor for estrogenic effects if prolonged or repeated courses are used.
What other medicines interact with Estradiol?
MediHelp also lists interactions of Estradiol with, for example, Anastrozole, Fezolinetant, Ospemifene. The full list is on the Estradiol page.
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