Cephalosporin in a sentence as a noun

What's worse is that these false penicillin allergies have precluded the use of similar ***** such as cephalosporins, despite a very low cross reactivity, and worse ***** such as vancomycin were used as substitutes.

Cephalosporin definitions

noun

one of several broad spectrum antibiotic substances obtained from fungi and related to penicillin (trade names Mefoxin); addition of side chains has produced semisynthetic antibiotics with greater antibacterial activity

See also: Mefoxin