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Updated: May 26, 2026

Ear Plaster Therapy as a Safe and Effective Treatment for Gestational Vomiting

Ear Plaster Therapy as a Safe and Effective Treatment for Gestational Vomiting

Published on: August 4, 2023

Algorithm for lamotrigine dose adjustment before, during, and after pregnancy.

¹The Epilepsy Clinic, Department of Neurology, University State Hospital, Rigshospitalet, Copenhagen, Denmark. anne.sabers@rh.regionh.dk

Acta Neurologica Scandinavica

|December 14, 2011

Summary

This summary is machine-generated.

Pregnancy can accelerate lamotrigine (LTG) elimination, increasing seizure risk. This study proposes a systematic algorithm for LTG monitoring and dose adjustment to maintain stable concentrations and prevent seizure deterioration during pregnancy.

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Last Updated: May 26, 2026

Ear Plaster Therapy as a Safe and Effective Treatment for Gestational Vomiting

Ear Plaster Therapy as a Safe and Effective Treatment for Gestational Vomiting

Published on: August 4, 2023

Area of Science:

Pharmacokinetics and pharmacotherapy
Maternal-fetal medicine
Neurology

Background:

Pregnancy accelerates lamotrigine (LTG) elimination, posing a significant risk of seizure breakthrough in pregnant individuals.
Individual pharmacokinetic variability in LTG metabolism during pregnancy complicates treatment management.

Purpose of the Study:

To introduce a systematic algorithm for monitoring lamotrigine (LTG) plasma concentrations during pregnancy.
To provide guidance for dose adjustments to prevent seizure deterioration and avoid LTG toxicity.

Main Methods:

Establish a reference LTG plasma concentration (RC) pre-pregnancy or early in gestation.
Monitor LTG plasma levels every 4 weeks throughout pregnancy, adjusting dosage by 20-25% as needed to maintain RC.
Implement post-partum monitoring and dose adjustments within 1-2 weeks to re-establish RC.

Main Results:

The proposed algorithm facilitates proactive management of LTG therapy during pregnancy.
Systematic monitoring and dose adjustment help maintain therapeutic LTG levels, mitigating risks associated with pharmacokinetic changes.

Conclusions:

Close adherence to the proposed algorithm can effectively prevent or minimize seizure deterioration in pregnant individuals on lamotrigine (LTG).
This strategy supports optimized LTG treatment, balancing seizure control with potential toxicity risks throughout pregnancy and the postpartum period.