Ethinylestradiol Levonorgestrel and Lamotrigine: Drug Interaction Guide

Quick answer: This combination requires caution. Ethinylestradiol Levonorgestrel and Lamotrigine can be used together with adjustments and monitoring.

Interaction severity: Moderate — caution required

How Ethinylestradiol Levonorgestrel interacts with Lamotrigine

Ethinylestradiol induces UGT-mediated glucuronidation of lamotrigine, lowering lamotrigine concentrations. Lamotrigine levels may rebound during hormone-free intervals or after contraceptive discontinuation.

What you should do

Monitor seizure or mood control and adjust lamotrigine dose when starting, stopping, or cycling combined hormonal contraception.

Key facts

Severity

Moderate — caution required

Mechanism

Ethinylestradiol induces UGT-mediated glucuronidation of lamotrigine, lowering lamotrigine concentrations. Lamotrigine l...

Action

Monitor seizure or mood control and adjust lamotrigine dose when starting, stopping, or cycling combined hormonal contra...

Important medical disclaimer: This page provides educational information about drug interactions for general reference. It is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your specific medications with a qualified healthcare provider before starting, stopping, or changing any treatment. About our editorial team.

Frequently asked questions

Can I take Ethinylestradiol Levonorgestrel and Lamotrigine together?

With caution. Monitor seizure or mood control and adjust lamotrigine dose when starting, stopping, or cycling combined hormonal contraception.

What is the severity of this interaction?

The interaction between Ethinylestradiol Levonorgestrel and Lamotrigine is classified as Moderate — caution required. Ethinylestradiol induces UGT-mediated glucuronidation of lamotrigine, lowering lamotrigine concentrations. Lamotrigine levels may rebound during hormone-free intervals or after contraceptive discontinuation.

What should I do if I'm prescribed both?

Monitor seizure or mood control and adjust lamotrigine dose when starting, stopping, or cycling combined hormonal contraception. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

Last reviewed: by iMedic Medical Editorial Team. Our editorial process.