Headache, edema, fatigue, somnolence, nausea, abdominal pain, skin redness, tachycardia, dizziness; itching, skin rash, dyspnea, dyspepsia, asthenia, myalgia, gingival hyperplasia, erythema multiforme. Rarely, MI, arrhythmia (ventricular tachycardia & atrial fibrillation) & chest pain.