2 doctors weighed in:

When you have taken bactrim, (sulfamethoxazole and trimethoprim) is there a chance that you would be immune to amoxicillin?

2 doctors weighed in
Dr. Jeffrey Juchau
Family Medicine

In brief: Unclear Question

there is no relationship between Bactrim, (sulfamethoxazole and trimethoprim) a sulfa drug and Amoxicillin, a penicillin based drug.
Your body does not become immune to either drug. You may develop an allergy, but they are not cross reactive. Bacteria may develop resistance, which you could call immunity, to an antibiotic. Both these drugs are antibiotics. Whether bacteria become resistant has nothing to do with you.

In brief: Unclear Question

there is no relationship between Bactrim, (sulfamethoxazole and trimethoprim) a sulfa drug and Amoxicillin, a penicillin based drug.
Your body does not become immune to either drug. You may develop an allergy, but they are not cross reactive. Bacteria may develop resistance, which you could call immunity, to an antibiotic. Both these drugs are antibiotics. Whether bacteria become resistant has nothing to do with you.
Dr. Jeffrey Juchau
Dr. Jeffrey Juchau
Thank
Dr. Richard Zimon
Internal Medicine

In brief: NO!

The two antibiotics belong to completely different "classes" of antibiotic! Dr Z

In brief: NO!

The two antibiotics belong to completely different "classes" of antibiotic! Dr Z
Dr. Richard Zimon
Dr. Richard Zimon
Thank
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