My mother is on 3mg a day. I give her 1 1/2mg in the morning and 1 1/2 mg at night. It seems to not be working on her anymore. She gets aggressive with her aid, yelling and cursing at her. She also wants to go to the bathroom every 2 minutes. It wouldn't be so bad but she has to be lifted off of her chair and off of the toilet. It's driving me and her aid crazy. Any advice????