cross-reactivity (beta-lactams and penicillin)
Last reviewed 01/2018
The indicence of allergy to cephalosporins in patients with history of penicillin allergy is approximately 8% (1). However the data sheets recommend that cephalosporins are used only with extreme caution in patients with a known type I reaction to penicillin.
There appears to be cross-reactivity between penicillins and imipenem. There appears to be significant cross-reactivity between penicillins and monobactams.
Reference:
- Drug and Therapeutics Bulletin (1996), 34 (11), 87-88.