Barb, No such problems here. The only problem I have with amantadine is the fact that it being an anti-viral drug, if I miss a day or two of taking it, I suddenly find myself laid up in bed with an awful flu like illness. Also, if I take too much of it, say an extra 100mg/day, I get a racing heart and can't sleep. But no problems, as far as I can tell, like those you mentioned. Jacob