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). Sulfa ...

Antibiotics and Other Sulfonamides to Avoid If You Have a Sulfa Allergy Medically reviewed by Jurairat J. Molina, MD Sulfa drugs are synthetic (man-made) medications made from sulfanilamide that ...

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 ...

Sulfonamides, or “sulfa drugs,” are a group of medicines used to treat bacterial infections. They come in different formulations and may be taken as an oral, topical, vaginal, or ophthalmic (eye) ...

DEAR DR. ROACH: I am a 78-year-old male in fairly good health. I recently was prescribed Bactrim (a sulfa drug) for an ear infection but didn’t know I am allergic to sulfa. I had a severe reaction to ...

Without any real understanding of how sulfa-drugs overcome infections, doctors have been freely using them ever since Dr. Gerhard Domagk of Germany discovered prontosil, forerunner of sulfanilamide, ...

Learn everything you need to know about Triple Sulfa-pronunciation, uses, dosage guidelines, indications, and when to take or avoid it. Get up-to-date information on side effects, precautions, ...

Dear Dr. Roach: I am a 78-year-old male in fairly good health. I recently was prescribed Bactrim (a sulfa drug) for an ear infection but didn’t know I am allergic to sulfa. I had a severe reaction to ...