Occasionally, anorexia, sensation of repletion, nausea, vomiting, bitter taste, numbness of mouth. Sporadically blurred vision; vertigo; allergic skin reactions; circulatory dysregulation in orthostasis. Rarely, fatigue, headache, psychic disorders, extrapyramidal symptoms; bradycardia, SA, AV or intraventricular blocks. Cholestasis. Risk of eliciting ventricular tachycardia or ventricular flutter, fibrillation; diminution of potency & drop in sperm count (high dose); very rarely, fully reversible decrease of white cell, granulocyte & platelet counts; agranulocytosis, rarely observed. Bronchial spasm, convulsion (following overdose).