PatientantibioticReaction/stepTreatmentCompleted successfully 1CeftazidimeNo-Yes Anaphylaxis/D2In ICU No MeropenemNo-Yes No-Yes Pruritus- No 2AztreonamUrticaria/D1AHYes Piperacillin/tazobactamUrticaria/D1AHYes CefepimeUrticaria/D1AHYes CeftazidimeUrticaria/D1AHYes 3CeftazidimeRash/D6-Yes 4CeftazidimeFever and dyspnea/D2No data No Hypotension/D1Fluids No 5CeftazidimeUrticaria/D2- No 6PiperacillinPruritus/D1AHYes Piperacillin/tazobactamPruritus/D1AHYes 7PiperacillinNo-Yes No-Yes