Dizziness, hypotension. Amlodipine: Flushing, headache, peripheral edema, tachycardia, palpitations; nausea & other GI disturbances, increased micturition frequency, lethargy, eye pain & mental depression; rashes (including erythema multiforme), fever, abnormalities in liver function, including cholestasis due to hyperplasia, myalgia, tremor, impotence. Losartan: Renal function impairment, hyperkalemia, myalgia; resp tract disorders, back pain, GI disturbances, fatigue & neutropenia.