[QUOTE=alreadybutnotyet;1252687]So you're saying that half of a 50/200 ER is about 60% of a regular (non-cut) 50/200 ER? Is that the half-life of the pill? What parameter is reduced? Is it the length of time the drug is effective? Sorry for the confusion. My amantadine (1/2 tablet twice a day) makes my short-term memory problems worse.[/QUOTEt

taking the 2 halves of a 50/200CR has the same affect as taking the whole pill. if you chewed that pill the affect would approximate (2) 25/100. i see you are already taking a CR at night so you could play around with adding CR, subtracting 25/100 during the day.
i'm not a doctor so do this at your own risk or talk to your doctor, best to test on the weekends. i think a lot of md's don't recommend CR during the day for advanced pd'ers since it can be unpredictable and build up later in the day. like i mentioned before, i'll take 100-150mg of 25/100IR(immediate release) in the morning to get a jump start, an hr later 50mg of IR +50/200CR. This might last me 3hrs, i'll follow with 100mg and repeat the pattern just once or twice, i don't want to take more than 3 50/200's during the day.

just got an RX for 25/250 C/L. This gives me more options, split to get 125mg and 62.5mg when i split the 125. it has only 1 score but splits pretty ok into qtrs, pill is blue, the mylan brand. i've tried the 25/250 an hr after eating some protein (no will power) and it kicked in in an hour. fwiw, it's cost to a pharmacy is not much more than 25/100 and even though there is less carbidopa, if your're taking 1000mg combined IR and CR like i am probably doesn't matter. so even if you paid for the rx out of pocket it would be a cheap reserve.