Discontinue use in occurrence of movement disorder eg, parkinsonian symptoms, restless leg syndrome, tremors, gait instability. Not a curative treatment for angina attacks, nor an initial treatment for unstable angina pectoris or MI, nor in the pre-hospital phase or during the 1st days of hospitalization. Can aggravate or cause symptoms similar to those of Parkinson's disease. Falls may occur following a drop in BP or loss of balance, particularly in patients taking antihypertensives. Patients w/ moderate renal impairment. Not to be taken during pregnancy. Elderly >75 yr.