Monday, 6/7, I began experiencing lack of coordination - bumping into furniture, walls, door facings, and tripping over things; also dropping things sometimes, but not as much as bumping into things. The fronts of my legs are covered with bruises. It is still occurring, though doesn't seem as severe. I had begun taking Abilify 5 mg po daily on 6/3, so I'd had only 4 doses when this began. Yesterday, I also began having palpitations and tachycardia, so have stopped the Abilify. My psychiatrist is sure the med isn't the reason for the coordination problem. My neuro exam in the ER yesterday was basically normal, although I didn't really touch my nose, was more between my nose and upper lip; and my legs didn't seem as strong as usual to me. The SE profile for abilify does mention tachycardia and irregular heartbeat, but not the coordination problem. Any thoughts?