Joan Dykstra wrote about Amantadine/Symmetrel. My meds began with only Eldepryl, with Amantadine added soon after. Later Parlodel was added. More recently, Sinemet CR was added to my daily meds. My experience with Amantadine is that it has good affect on tremor. For good affect on slow movement and walking problems, I had to go from Amantadine 100mg twice/day to three times/day. After about another year, Parlodel was added. (note- This was before I bought my Macintosh. I wish that I had kept better records on the progress of my Parkinsons. It's difficult sometimes to go back and construct a record of events. I recommend to new PWP, use your Mac or PC to keep a record of your experiences and medications.) A problem that I had with taking Amantadine three/day is that it would get me feeling "wired" in the evening. And when I did go to bed, I would frequently wake up 2-3 hours later and be unable to go back to sleep. Since I have been taking Sinemet 50/200 CR twice/day, I have reduced my Amantadine to twice/day. I never take Amantadine later than my noon meal. I don't feel "wired" anymore and sleep much better. However, right hand tremor has reappeared. But I can deal with a small amount of tremor. The only time that it becomes a problem is when I'm involved in a frustrating situation at work. There seems to be a direct relationship between frustration and tremor. I take Sinemet with orange juice in the morning and 7-Up or water in the afternoon. I always take Amantadine with a meal though, because it seems to irritate my stomach. The primary reasons that I continue with Amantadine is 1) it seems to be very effective with my tremor, 2) lowers the amount of Sinemet that I need, and 3) it may be able to protect neurons in some patients (Scientific American Jan 1997). I get my meds through the HMO provided by my employer, so I assume the Amantadine is generic. I hope this helps anyone who is just starting or may be soon taking Amantadine. Charley Countryman (46/6) [log in to unmask]