Abdominal & chest pain, rash, pruritus. Headache, inj site reaction, dyspepsia, diarrhea, vomiting, dizziness, rhinitis; angioedema (Quincke's edema); anterior ischemic optic neuropathy; severe dermatologic reactions including erythema multiforme, SJS & TEN; hepatocellular damage leading to jaundice & hepatic failure; pancreatitis, pancytopenia, rhabdomyolysis; confusion, hypokinesia, speech disorder, increased salivation, vertigo, nausea, tinnitus & blurred vision.