Drug interactions
Cenobamate + Desogestrel-ethinyl estradiol
Severity: Major
Cenobamate and Desogestrel-ethinyl estradiol: major 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
Cenobamate induces CYP3A4 and may lower ethinyl estradiol and progestin levels. This can reduce contraceptive efficacy and risk unintended pregnancy, which matters because cenobamate is also used in women of childbearing potential.
What this interaction means in plain words
Cenobamate and Desogestrel-ethinyl estradiol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Cenobamate belongs to Central Nervous System; Desogestrel-ethinyl estradiol belongs to Endocrine.
Why it happens
Cenobamate induces CYP3A4, increasing metabolism of ethinyl estradiol and etonogestrel.
What to do
Advise an additional or alternative non-hormonal contraceptive method during treatment and for a period after stopping cenobamate. Do not rely on the combined pill alone.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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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 Cenobamate
Frequently asked questions
Can I take Cenobamate with Desogestrel-ethinyl estradiol?
MediHelp rates the interaction as major. Cenobamate and Desogestrel-ethinyl estradiol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Cenobamate induces CYP3A4 and may lower ethinyl estradiol and progestin levels. This can reduce contraceptive efficacy and risk unintended pregnancy, which matters because cenobamate is also used in women of childbearing potential.
How serious is the interaction between Cenobamate and Desogestrel-ethinyl estradiol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise an additional or alternative non-hormonal contraceptive method during treatment and for a period after stopping cenobamate. Do not rely on the combined pill alone.
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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