Dizziness, flushing, headache, hypotension, peripheral edema, tachycardia & palpitations. Nausea & other GI disturbances, increased micturition frequency, lethargy, eye pain & mental depression; paradoxical increase in ischemic chest pain (start of treatment), excessive fall in BP leading to cerebral or myocardial ischemia or transient blindness. Rashes (including erythema multiforme), fever & abnormalities in liver function including cholestasis; myalgia, tremor; impotence.