Sulfa Allergy: Side Effects & Safe Drug Alternatives

Dealing with a sulfa allergy requires a comprehensive list of safe drug alternatives. Learn the common side effects of sulfa antibiotics and how to avoid dangerous reactions.

Side Effects of Sulfa Antibiotics

Published Aug,14 2017 | By Kari Oakes

Sulfa antibiotics are used to treat many common infections, but this drug class can cause a variety of side effects. A common oral formula, called TMP-SMX (Bactrim or Septra) combines sulfamethoxazole with the antibiotic trimethoprim.