GI disturbances eg, nausea, vomiting, diarrhea, abdominal pain & dyspepsia. CNS effects eg, headache, anorexia, flatulence, bilirubinemia, dizziness & restlessness. Hypersensitivity reactions eg, rash, pruritus, photosensitivity, vasculitis, erythema multiforme, Stevens-Johnson syndrome, toxic epidermal necrolysis, laryngeal edema & anaphylaxis.