The doctor has suggested my husband stop taking the amantadine he has been on for several years (3 x's daily). It seems to have lost its usefulness. He is adding azilect, .5mg daily for 2 weeks, then 1.0mg for the next 2 weeks. My husband forgot to ask how to cut the amantadine. I thought he could stop the morning dose for a week, stop the afternoon dose the next week, and by the third week he could stop the evening dose. Is this enough time to allow for the amantadine to clear his system? We appreciate your input...thanks!