Smoking reduces serum levels of lamotrigine.

If you smoke, and you are using seizure medications, take notice--smoking was shown in a recent study to reduce blood levels of lamotrigine (Lamictal). That means that, in order for the medication to be effective in a smoker, you need more of it.

The obvious solution here...is to quit smoking. You'll save money on cigarettes as well as medication. Hopefully at some level any smokers reading this will file this information into their "reasons to quit" pile and eventually think about doing so!

Reinsberger C, Dorn T, Krämer G. Smoking reduces serum levels of lamotrigine. Seizure. 2008 Oct;17(7):651-3.