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 ...

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 ...

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, and ...

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 ...

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 ...

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 ...

Q. I am highly allergic to sulfa drugs and cannot eat any dried fruit because it is cured with sulfur. My severe allergy to the sulfites in wine causes hand-sized hives, but I would like to cook with ...

Scientists have discovered a key enzyme structure in bacteria, a finding that lays the foundation for a new generation of antibiotics that are safer and less prone to drug resistance. St. Jude ...

Is it reasonably safe for patients with an allergy to sulfa to take sulfonylureas? Please elaborate on cross-reactivity associated with sulfa drugs.—DONNA O’HARA, ARNP-BC, Gainesville, Fla. The ...