The Pill & Lamictal / Lamotrigine

I found this while looking at drug interactions, it seems some of them are not on the warning label even though the doc's have them in their little pharmacy books.


Ladies and Lamotrigine . . . . . 'Recent studies have suggested that treatment with lamotrigine and combined oral contraceptives may decrease lamotrigine serum concentrations. The addition of an oral contraceptive which contains ethinyl estradiol may decrease lamotrigine concentrations by as much as 50%. Importantly, this interaction dissipates quite rapidly during the pill-free week and within one week following discontinuation of an oral contraceptive agent.'

http://professionals.epilepsy.com/page/newsletter_092011.html

Oh, so it's the other way around this time? It's the Lamotrigine efficacy decreased, not the Pill?
Hmm, interesting, and thank you for posting that!

Risa