Structurally related to the penicillins: so if allergic to penicillin then could have an allergy to a ______ as well; HOWEVER because ________ are so similar to penicillins, if someone has a MILD allergy to penicillin that was more than 10 years ago then a _______ may be considered
a. cephalosporin
b. cephalosporins
c. cephalosporin
d. cephalosporins