those e tion not be of drug concentra t sis. There reduced by hemodialysis should be is no antidote. Treatment of overdosage symptomatic. In Patients with known er sensitiv the possibility patients to penicillin, mind of allergic cross-reactions should be in PRECAUTIONS: As with other cephalosporins, shock cannot be ruled out even patient history is taken. Pseudomembranous colitis has been reported with nearly all antibacterial agents, including ceftriaxone. There- fore, it is important to consider this diagnosis in patients with diarrhea subsequent to the administration of antibacterial agents Superinfections with nonsusceptible microorganisms may occur with other antibacterial agents. gallstones have Shadows which have been mistaken for been detected on sonograms of the gallbladder, usually fol- lowing doses higher than the standard recommended dose These shadows are, however, precipitates of ceftri