SR cap: Nausea, anorexia, heartburn, constipation, diarrhea, headache, salivation, pollakiuria, facial flush, heat sensation, palpitation, edema of the lower limbs & lassitude. Inj: Asthenia, chest pain, fever, neck pain, malaise, fatigue, peripheral or facial edema, infection, arthralgia; hypotension, postural hypotension, exertional, hypotension, tachycardia, ECG abnormality, ventricular extrasystoles, extrasystoles, hemopericardium, HTN, supraventricular tachycardia, syncope, vasodilation, ventricular tachycardia, angina pectoris, AV block, ST segment depression, inverted T-wave, deep-vein thrombophlebitis, sick sinus syndrome, flushing, palpitations, MI, atrial fibrillation, pericarditis, peripheral vascular disorder; abdominal pain, nausea, vomiting, dyspepsia; constipation, diarrhea, dry mouth, anorexia, heartburn; hypokalemia, hypophosphatemia, hyperglycemia, abnormal hepatic function test results, increased plasma renin conc; headache, dizziness, hyperthesia, intracranial hemorrhage, paresthesia, confusion, hypertonia, somnolence, insomnia, hot flashes, vertigo, hyperkinesia, impotence, mental depression, anxiety, CVA, cerebral ischemia, lassitude, nervousness, lightheadedness; thrombocytopenia; dyspnea, resp disorder, rhinitis, sinusitis; sweating, inj site reaction & pain, rash; polyuria, hematuria, increased urinary frequency, nocturia, urinary retention; conjunctivitis, abnormal or blurred vision, ear disorder, tinnitus.