Thank you for the off/on information and insight. Perhaps you can help me answer a few questions. What do you reccommend I do when I go off quite suddenly , say while shopping in a food market. Would chewing up a Sinemet be helpful? When I feel myself beggining to 'slide' off, is there anything I can do to prevent going off all together? I've looked through several PD asdvise books and not found any that gives worthwhile or detailed advice on how to handle off/on. Any suggestions or readings you have would be much appreciatted. All good wishes! Kurt