Barbara: Mom is 8 years, Stage 4, in with the horrible disease and we have run the gamit of meds for PSP. Sorry to say all she is on is Effexor and valium(tranqulizers and anti-depression meds). She was on Senimet for about 1 1/2 months but to no avail. The doctor said if it was going to help we should see results within the first week. It has been nothing with Bacolefen, Aricept, Senimet, Paxil, etc. to many to remember.
I urge you to do a search(upper righthand of screan) of this site, for Senimet due to so many patients that have used it. That way you can make a accurate decision on whether to continue.
I was willing to try anything for a trial run, in hopes it might help. In mom, it hasn't and we have come to terms with the disease and our option is to make her as comfortable as possible.
Hugs to you and your family