Abdominal discomfort, constipation, diarrhea, dyspepsia, eructation, flatulence, fullness, gastritis, GI bleeding & pain, nausea, pancreatitis, peptic ulcer, perforation, stomatitis, vomiting; abnormal dreams, abnormal taste & vision, abnormal thinking, aseptic meningitis, convulsions, depression, dizziness, drowsiness, dry mouth, euphoria, excessive thirst, functional disorders, hallucinations, headache, hearing loss, hyperkinesia, inability to concentrate, insomnia, myalgia, nervousness, paresthesia, stimulation, sweating, tinnitus, vertigo; acute renal failure, flank pain (w/ or w/o hematuria), glomerular nephritis, hemolytic uremic syndrome, hyperkalemia, hyponatremia, increased urinary frequency, interstitial nephritis, nephrotic syndrome, oliguria, raised serum urea & creatinine, renal papillary necrosis; bradycardia, flushing, HTN, pallor, purpura, thrombocytopenia; asthma, dyspnea, pulmonary edema; exfoliative dermatitis, Lyell's syndrome, maculopapular rash, pruritus, SJS, urticaria; anaphylaxis, bronchospasm, flushing & rash, hypotension, laryngeal edema; epistaxis, hematomata, post-op wound hemorrhage; abnormal LFTs, asthenia, edema, inj site pain, wt gain.