Posted by PeterMartin on February 2, 2021, at 22:34:20
New 2021 study: https://www.sciencedirect.com/science/article/abs/pii/S1525505020309215
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Highlights
A robust prospective pharmacokinetic study demonstrates an interaction between lamotrigine and coffee.
Coffee consumption decreases lamotrigine area under the curve and maximum concentration.
Cigarette use does not change lamotrigine area under the curve and maximum concentration.
===Abstract
The objective of this analysis was to determine possible interactions between lamotrigine (LTG) and coffee or cigarette use. As part of the statistical analysis of factors influencing LTG pharmacokinetics (PK) in the Equigen chronic dose study, we collected prospective data from enrolled patients on their use of coffee and cigarettes. Subjects were part of a crossover replication study of generic LTG products with rigorous blood sampling and were instructed to not change their typical consumption of these products for the duration of the study. A total of 35 subjects were enrolled, with 33 subjects having sufficient data for analysis. Higher consumption of coffee was associated with a significantly lower area under the curve (AUC) and maximum concentration (Cmax) of lamotrigine (LTG). Higher cigarette use did not result in a significant change in AUC or Cmax. Coffee, but not cigarette use, either induces LTG metabolism or inhibits LTG absorption.
poster:PeterMartin
thread:1113606
URL: http://www.dr-bob.org/babble/20210120/msgs/1113606.html