Drug interactions
Conjugated estrogens + Oxcarbazepine
Severity: Moderate
Conjugated estrogens and Oxcarbazepine: moderate 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
Oxcarbazepine can lower estrogen levels through enzyme induction, which may cause recurrence of menopausal symptoms or breakthrough bleeding.
What this interaction means in plain words
Conjugated estrogens and Oxcarbazepine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Induction of CYP3A4 and conjugation pathways increases estrogen clearance.
What to do
Monitor for loss of symptom control and bleeding irregularities, and increase the estrogen dose if needed.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Oxcarbazepine
- Cabotegravir + Oxcarbazepine Contraindicated
- Oxcarbazepine + Rilpivirine Contraindicated
- Artemether / lumefantrine + Oxcarbazepine Major
- Atazanavir + Oxcarbazepine Major
- Benzhydrocodone / acetaminophen + Oxcarbazepine Major
- Bictegravir + Oxcarbazepine Major
Frequently asked questions
Can I take Conjugated estrogens with Oxcarbazepine?
MediHelp rates the interaction as moderate. Conjugated estrogens and Oxcarbazepine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Oxcarbazepine can lower estrogen levels through enzyme induction, which may cause recurrence of menopausal symptoms or breakthrough bleeding.
How serious is the interaction between Conjugated estrogens and Oxcarbazepine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for loss of symptom control and bleeding irregularities, and increase the estrogen dose if needed.
What other medicines interact with Oxcarbazepine?
MediHelp also lists interactions of Oxcarbazepine with, for example, Cabotegravir, Rilpivirine, Artemether / lumefantrine. The full list is on the Oxcarbazepine page.
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