Anorexia, nausea, abdominal discomfort, cramps, flatulence, vomiting & diarrhea; chest pain, melena, nephritis, vaginitis, headache, taste disturbances, vertigo, dizziness, convulsions, somnolence, tinnitus & fatigue; reversible sensorineural hearing loss, eosinophilia, acute interstitial nephritis, irregular heart beat.