"Parkinson's Disease: Questions and Answers" by Hauser and Zesiewicz is a very informative and up to date book about PD. Thanks to the person who posted ordering info. On page 51 of the book, under "What are the pharmacokinetics of levodopa?", there is this one sentance "Absorption can be delayed by meals and increased gastric acidity." Is the statement correct, or it should be decreased gastric acidity (i. e. increased pH)? Could someone please throw a light on me? Liangshiu Lee 42, PD six years, Kaohsiung, Taiwan