many people (not all) who are allergic to penicillin may also be allergic to cephalosporins like keflex so it would be wise to be skin tested by an allergist with a dilute amount to see if you have an allergic reaction keflex is not made from any mold. it is synthetic.
is cephalexin part of penicillin family and/or is it derived from mold? . skin tests show i am severely allergic to mold. and when i take antibiotics from the penicillin family i have severe reactions. my father is allergic to penicillin and if he takes it he will die. i also cannot take erythromycin due to severe allergic reactions. and my mother is allergic to it. if she takes it she will die. i know i can take ciprofloxacin and doxycycline but i would like to be able to take something when i get strep throat. can i take keflex? is it derived from mold?