Rarely, GI disturbances, edema, pain, HTN, flushing, palpitation, dizziness, headache, vertigo, tinnitus, drowsiness, anemia, arthralgia, back pain, insomnia, cough, resp infection, dyspnea, pruritus, rash, urticaria, photosensitivity, increased frequency of micturition, UTI, increased serum urea, creatinine, transaminase &/or bilirubin levels.