Whew! I'm glad my pills aren't affected by this. I take 200 mg in the AM, then 1 1/2 200 mg (=300mg) tabs at night. Of course, there will probably be other doses that may be affected; one of my blood pressure meds wasn't on the list of those that may contribute to certain cancers, but a few months later it was listed. But to me it's worth the risk, as not taking it would likely result in uncontrolled blood pressure and stroke or heart attack. Just as I wouldn't give up taking lamotrigine. It's too important in keeping me well.