Drug interactions
Desogestrel-ethinyl estradiol + Topiramate
Severity: Moderate
Desogestrel-ethinyl estradiol and Topiramate: 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
Topiramate can reduce ethinyl estradiol exposure, mostly at higher doses, and may cause breakthrough bleeding. Contraceptive failure is possible, and topiramate is teratogenic.
What this interaction means in plain words
Desogestrel-ethinyl estradiol and Topiramate 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.
Desogestrel-ethinyl estradiol belongs to Endocrine; Topiramate belongs to Central Nervous System.
Why it happens
Dose-dependent induction of CYP3A4 by topiramate lowers ethinyl estradiol exposure.
What to do
Counsel on breakthrough bleeding and consider a higher-estrogen product or an additional non-hormonal method, especially at doses above about 200 mg daily. A non-hormonal method is preferred given teratogenic risk.
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 Desogestrel-ethinyl estradiol
- Desogestrel-ethinyl estradiol + Fezolinetant Contraindicated
- Aminocaproic acid + Desogestrel-ethinyl estradiol Major
- Amobarbital + Desogestrel-ethinyl estradiol Major
- Anastrozole + Desogestrel-ethinyl estradiol Major
- Apalutamide + Desogestrel-ethinyl estradiol Major
- Atazanavir + Desogestrel-ethinyl estradiol Major
Other interactions of Topiramate
Frequently asked questions
Can I take Desogestrel-ethinyl estradiol with Topiramate?
MediHelp rates the interaction as moderate. Desogestrel-ethinyl estradiol and Topiramate 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. Topiramate can reduce ethinyl estradiol exposure, mostly at higher doses, and may cause breakthrough bleeding. Contraceptive failure is possible, and topiramate is teratogenic.
How serious is the interaction between Desogestrel-ethinyl estradiol and Topiramate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel on breakthrough bleeding and consider a higher-estrogen product or an additional non-hormonal method, especially at doses above about 200 mg daily. A non-hormonal method is preferred given teratogenic risk.
What other medicines interact with Desogestrel-ethinyl estradiol?
MediHelp also lists interactions of Desogestrel-ethinyl estradiol with, for example, Fezolinetant, Aminocaproic acid, Amobarbital. The full list is on the Desogestrel-ethinyl estradiol page.
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