Side Effects | Common Gastrointestinal: Abdominal pain (adult, 1.9% to 14%; pediatric, 2% to 4% ), Diarrhea (adult, 4.3% to 12%; pediatric, 7% to 10% ), Flatulence (5% ), Nausea (adult, 3% to 14%; pediatric, 4% ), Vomiting (adult, up to 13%; pediatric, 11% to 14% ) Hepatic: Increased liver enzymes (less than 1% to 6% ) Neurologic: Headache (up to 5% ) Ophthalmic: Abnormal vision (5% ) Serious Cardiovascular: Prolonged QT interval, Torsades de pointes Dermatologic: Generalized exanthematous pustulosis, acute, Stevens-Johnson syndrome, Toxic epidermal necrolysis Gastrointestinal: Congenital hypertrophic pyloric stenosis Hepatic: Hepatic necrosis, Hepatitis (less than 1% ), Liver failure Immunologic: Drug reaction with eosinophilia and systemic symptoms, Hypersensitivity reaction Musculoskeletal: Eaton-Lambert syndrome, Myasthenia gravis, Exacerbation of, Myasthenic crisis Ophthalmic: Corneal erosion (less than 1% ) |