Drug interactions
ethinyl estradiol + lamotrigine
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.
Overview
↓ lamotrigine levels → loss of seizure control.
Mechanism of action
UGT induction by estrogen.
Clinical management
Increase LTG dose; monitor levels/clinical response.
Drug reference
References
Frequently asked questions
Can I take ethinyl estradiol with lamotrigine?
The interaction is rated: Major. ↓ lamotrigine levels → loss of seizure control.
How serious is the interaction between ethinyl estradiol and lamotrigine?
The interaction is rated: Major. Evidence level: High.
How is the interaction between ethinyl estradiol and lamotrigine managed?
Increase LTG dose; monitor levels/clinical response.
Why do ethinyl estradiol and lamotrigine interact?
UGT induction by estrogen.
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