Nitrofurantoin

Nitrofurantoin is used to treat urinary tract infections. Nitrofurantoin is in a class of medications called antibiotics. It works by killing bacteria that cause infection.

Antibiotics such as nitrofurantoin will not work for colds, flu, or other viral infections. Using antibiotics when they are not needed increases your risk of getting an infection later that resists antibiotic treatment.

Nitrofurantoin comes as a capsule and a suspension (liquid) to take by mouth.