Antipseudomonals are all, except.: (A) Cephalexin, (B) Carbenicillin, (C) Piperacillin, (D) Ceftazidime
Answer is A. Ans. (A) Cephalexin(Ref: KDT 8/e p773,774,776; Goodman & Gilman 10/e p1209)Cephalexin is an orally effective first generation cephalosporin active against gram positive but not against gram negative organisms like pseudomonas.