If you have a sulfa allergy, you should avoid antibiotics such as Bactrim or Septra (TMP/SMX, trimethoprim-sulfamethoxazole). Trimethoprim-sulfamethoxazole is the most commonly used sulfa antibiotic.

What Is a Sulfa Allergy? A sulfa allergy is a rash or more serious reaction to sulfa drugs. These drugs can treat a range of health problems from eye infections to rheumatoid arthritis (RA).

Sulfamethoxazole 400mg, trimethoprim 80mg; scored tabs. Sulfamethoxazole inhibits bacterial synthesis of dihydrofolic acid by competing with para-aminobenzoic acid (PABA). Trimethoprim blocks the ...

Despite having similar names and symptoms, sulfa and sulfite allergies are different. Sulfa refers to sulfonamides, known as sulfa drugs, while sulfite is commonly found in wine, processed food ...

A sulfa allergy occurs when a person has an allergic reaction to drugs that contain chemicals called sulfonamides. Symptoms may include a rash, difficulty breathing, and more. Sulfa is present in ...

DEAR DR. ROACH:As a 90-year-old man in mostly good health, I have been taking one Bactrim (sulfamethoxazole/trimethoprim) pill per day for several years now ...

A patient history of allergic reaction to sulfa drugs should not exclude Polytrim as a treatment. There seems to be no correlation between trimethoprim sulfate and sulfa sensitivity. After using ...

Sulfamethoxazole 80mg, trimethoprim 16mg; per mL; contains sulfites, benzyl alcohol. Sulfamethoxazole inhibits bacterial synthesis of dihydrofolic acid by competing with para-aminobenzoic acid (PABA).