I am a daily reader as my mother, aged 81, has Parkinson's. She was recently given a herb or "natural" product by a friend who claims it can be a substitute for my mother's l-dopa medication. It's called l-tyrosine, free form, 500 mg. My mother is not so foolish as to consider dropping her regular med but questions if she can take this l-tyrosine as well. Can anyone reading this board advise us? Your help would be much appreciated. Actually, you help is ever appreciated as I frequently print up your comments and mail them to Mama. Sincerely, Judith Guion [log in to unmask]