Hypotension, HTN, nausea, bradycardia, fever, vomiting, hypoxia, tachycardia & anemia. Hyperpyrexia, hypovolemia, light anesth, pain, rigors; BP fluctuation, heart disorder, aggravated HTN; dizziness, headache, neuralgia, neuritis, speech disorder; abdominal pain, diarrhea; arrhythmia, ventricular arrhythmia & tachycardia, AV & heart block, cardiac arrest, extrasystoles, atrial fibrillation, T wave inversion, supraventricular tachycardia; increased GGT, SGOT, SGPT; acidosis, resp acidosis, hyperkalemia, increased alkaline phosphatase, thirst; agitation, confusion, delirium, hallucination, illusion; apnea, bronchospasm, dyspnea, hypercapnia, hypoventilation, pulmonary congestion; increased sweating; photopsia, abnormal vision.