Discontinue use if serious & occasionally fatal hypersensitivity (anaphylactic) & severe skin reactions, superinfection occur. Not to be used in infectious mononucleosis. Overgrowth of nonsusceptible organism;
Clostridium difficile-associated diarrhea. Periodically check for organ system dysfunction during prolonged therapy. Renal function in neonates. Galactose intolerance, Lapp lactase deficiency or glucose-galactose malabsorption. Drug-induced hepatic injury. Pregnancy. Not recommended during lactation.