Thailand
A 26-year-old male asked:
Can i take rocephin (ceftriaxone) if i'm allergic to penicillin?
2 doctor answers • 2 doctors weighed in
Dr. Derek Isenberganswered
Emergency Medicine 18 years experience
Very likely: There's a very small, less than 1% chance of cross-reaction between penicillin and a cephalosporins. If you had a severe reaction to penicillin, you're more likely to have a severe allergic reaction to anything else. However, I would not hesitate to take ceftriaxone if it is the appropriate medication
Created for people with ongoing healthcare needs but benefits everyone.
3.4k viewsAnswered >2 years ago
A Verified Doctoranswered
Internal Medicine 15 years experience
Depends.: It depends how severe your reaction is and who the prescribing practitioner is. There is about a 10% cross reactivity with cephalosporins (Rocephin (ceftriaxone)) and penicillin based drugs. Usually if the reaction is minor, I will prescribe a cephalosporin like Rocephin (ceftriaxone). However, if the reaction to the penicillin based med is severe like shortness of breath, swelling or anaphylaxis I may avoid them completely.
Created for people with ongoing healthcare needs but benefits everyone.
3.4k viewsAnswered >2 years ago
Last updated Oct 23, 2018
People also asked
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $39!
50% off with $15/month membership
Disclaimer:
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.