Thanks Arlene.... Actually, I've taken Lysine - 2000 mgs or ICUs <can't remember which it's measured by> a day when I had the canker sores in my mouth and 1000 mgs/ICUs a day as a preventative. I took the stuff off and on for 'bout a hundred years or so <smile> as a palliative for the canker sores that I used to get a dozen or more at a time (many, many years ago) Once I began taking that 1000 mg/ICU "maintenance dose" of Lysine every day I just stopped getting the darn things entirely after a while (YEA!!!) Since I was taking the Lysine for something other than nausea (which I wasn't bothered by way back then, in those pre-PD-drugs-years) I never thought to see if the Lysine worked on other things besides the canker sores. Darn! A research opportunity missed! Oh well... I was a lot more innocent about the overall effect of drugs on a neurological condition in those days - It wouldn't have occurred to me to log the information then as I do now. Thanks again.. Barb Mallut [log in to unmask]