6 doctors weighed in:
Is trimethoprim sulfamethoxazole likely to cause hives?
6 doctors weighed in

Dr. Steven Machtinger
Internal Medicine - Allergy & Immunology
3 doctors agree
In brief: As likely as any
Trimethoprim sulfamethoxazole (septra (sulfamethoxazole and trimethoprim) or bactrim) is an antibiotic used for urinary, respiratory and middle ear infections.
Its use has increased because it is effective against many strains of MRSA (methicillin-resistant staph aureus). Like other drugs taken intermittently it can trigger allergic reactions. Hives are a common symptom of allergic reactions to drugs.

In brief: As likely as any
Trimethoprim sulfamethoxazole (septra (sulfamethoxazole and trimethoprim) or bactrim) is an antibiotic used for urinary, respiratory and middle ear infections.
Its use has increased because it is effective against many strains of MRSA (methicillin-resistant staph aureus). Like other drugs taken intermittently it can trigger allergic reactions. Hives are a common symptom of allergic reactions to drugs.
Dr. Steven Machtinger
Dr. Steven Machtinger
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Dr. Andrew Murphy
Internal Medicine - Allergy & Immunology
In brief: Possible
Any medication has the possibility to cause an allergic reaction.

In brief: Possible
Any medication has the possibility to cause an allergic reaction.
Dr. Andrew Murphy
Dr. Andrew Murphy
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Dr. Jerome Litt
Dermatology
In brief: BACTRIM (sulfamethoxazole and trimethoprim) AND HIVES
The trade name is either Bactrim (sulfamethoxazole and trimethoprim) or septra. These are the drugs that probably cause hives more than any other medication. Stop immediately!

In brief: BACTRIM (sulfamethoxazole and trimethoprim) AND HIVES
The trade name is either Bactrim (sulfamethoxazole and trimethoprim) or septra. These are the drugs that probably cause hives more than any other medication. Stop immediately!
Dr. Jerome Litt
Dr. Jerome Litt
Thank
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