Confusional state, disorientation, emotional & mood disturbances; pre-existing depression; paradoxical reactions (eg, restlessness, agitation, irritability, aggressiveness, delusion, anger, nightmares, hallucinations, psychoses, inappropriate behavior, nervousness, anxiety, abnormal dreams, hyperactivity & other adverse behavioral effects); physical & psychological drug dependence; drowsiness, headache, dizziness, decreased alertness, ataxia; anterograde amnesia; diplopia; GI disorders; skin reactions; muscle weakness; fatigue; fall, fracture; resp depression; cardiac failure including cardiac arrest.