Drug interactions
Conjugated estrogens vaginal + Itraconazole
Severity: Minor
Conjugated estrogens vaginal and Itraconazole: 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 conjugated estrogens produce limited systemic exposure, but itraconazole could modestly increase it. Clinically significant effects are unlikely in most patients.
What this interaction means in plain words
Conjugated estrogens vaginal and Itraconazole 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
Itraconazole inhibits CYP3A4, which could slightly reduce metabolism of absorbed estrogens.
What to do
No routine change is needed. Watch for signs of estrogen excess such as abnormal bleeding or breast tenderness during prolonged itraconazole treatment.
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 Itraconazole
- Alfuzosin + Itraconazole Contraindicated
- Alprazolam + Itraconazole Contraindicated
- Avanafil + Itraconazole Contraindicated
- Conivaptan + Itraconazole Contraindicated
- Dihydroergotamine intranasal + Itraconazole Contraindicated
- Dihydroergotamine + Itraconazole Contraindicated
Frequently asked questions
Can I take Conjugated estrogens vaginal with Itraconazole?
MediHelp rates the interaction as minor. Conjugated estrogens vaginal and Itraconazole 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 conjugated estrogens produce limited systemic exposure, but itraconazole could modestly increase it. Clinically significant effects are unlikely in most patients.
How serious is the interaction between Conjugated estrogens vaginal and Itraconazole?
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 routine change is needed. Watch for signs of estrogen excess such as abnormal bleeding or breast tenderness during prolonged itraconazole treatment.
What other medicines interact with Itraconazole?
MediHelp also lists interactions of Itraconazole with, for example, Alfuzosin, Alprazolam, Avanafil. The full list is on the Itraconazole page.
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