U.S. doctors online nowAsk doctors free
A 22-year-old male asked:

Please help, how long after would anaphalaxis occur if i took amoxicillin? also, how rare is anaphalaxis wi to amoxicillin?

1 doctor answer2 doctors weighed in
Dr. Hunter Handsfield
Infectious Disease 55 years experience
When any drug causes anaphylaxis, it usually happens within a few minutes of the first dose. It is very rare, especially in people without known penicillin allergy.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Aug 27, 2022


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.