Get Virtual Care
For Businesses
About Us
A member asked:
Is it possible for you to take cephalexin if you r allergic to penicillins?
A doctor has provided 1 answer
Yes: Cross reactivity between the two classes are low so Cephalexin is not contraindicated in penicillin allergy patients. You should have your prescribing physician to follow you for any signs of reactions and get proper treatment.
Answered 8/1/2018
4.7k views
Thank
Related Questions
A member asked:
I m allergic to penicillin keflex azithromiacin my daughter has scarlet fever and i m worried about what i can take if i get it ?
3 doctors weighed in across 2 answers
A member asked:
If I got an allergic reaction from cephalexin, does that mean I am also allergic to penicillin?
A doctor has provided 1 answer
A member asked:
I started taking cephalexin. As I have had mild allergic reaction to penicillin , should I expect serious allergic reactions to this medicatiion?
A doctor has provided 1 answer
A member asked:
I'm allergic 2 penicillin/prescribed cephalexin 4 a cellulitis infection in my arm from a iv. How fast would a serious reaction occur if allergic ?
2 doctors weighed in across 2 answers
A member asked:
I'm 18 years old and weigh 250 lbs. I am allergic to penicillin but have strep throat. What is the correct dose of cephalexin to be taken?
4 doctors weighed in across 3 answers
People also searched for:
Can I take cephalexin if I am highly allergic to penicillin? I have not taken penicillin since I was very young. Reaction of hives convulsions
I am allergic to penicillin is it safe to take cephalexin for infection in the urine.
I'm allergic to penicillin, can I take keflex?
If i'm allergic to penicillin is it safe to take keflex pulvales?
Is it a bad idea for someone allergic to penicillin safely take keflex, a cephalosporin?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
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.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
