Can you take Bactrim if your allergic to Vantin?

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New Member

Date Joined Jul 2017
Total Posts : 1
   Posted 7/13/2017 11:30 PM (GMT -6)   
Hello everyone, I am new here and looking for help with a couple of questions if possible. Have read many topics and responses. Love the ideas and help that everyone gives.

My son is 22 yrs old and allergic to Vantin, when he was 2 yrs old his Dr gave him Vantin when he had a double ear infection. He broke out in one huge rash covering his face, chest, tummy, and back. They kept telling me over the years that he should possibly grow out of it??

Over the last 20 yrs he hasn't had to take any antibiotics, that I recall. But now he has to have a tooth removed and the dentist gave him a prescription for Bactrim. I reminded him of his allergies from 20 yrs before, and the dentist said he would be fine, didn't sound to convincing to me or I just over assume things at times.

I'm looking to find out if you can take Bactrim if your a allergic to Vantin?

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Date Joined Feb 2003
Total Posts : 16607
   Posted 7/14/2017 8:17 AM (GMT -6)   
Check with your pharmacist that would be the best source. Yes, it is possible to outgrow some allergies like that. Hope all goes well with having the tooth removed.
Moderator in Chronic Pain & Psoriasis Forums

Veteran Member

Date Joined Oct 2009
Total Posts : 5024
   Posted 7/18/2017 5:22 PM (GMT -6)   
Vantin, now discontinued, was a cephalosporin. Bactrim is a combination of a sulfonamide and another antibiotic. They are not in the same class.

Check with your pharmacist.

Regular Member

Date Joined Jul 2011
Total Posts : 60
   Posted 7/20/2017 8:14 AM (GMT -6)   
Both drugs contain Cefpodoxime for infection, so you need to ask as both members have stated because usually once your allergic to some thing you wouldn't risk it again.
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