Nitrofurantoin and Cranberry Extract Uses Nitrofurantoin and Cranberry Extract are used in the treatment of bacterial infections of the urinary tract.
How Nitrofurantoin and Cranberry Extract Work Nitrofurantoin and Cranberry Extract is a combination of two medications. Nitrofurantoin is an antibiotic that works by killing the bacteria in the urine that cause infection. Cranberry Extract, derived from cranberry fruit, prevents bacteria from adhering to each other to form a biofilm (colony) in the urinary tract, thereby hindering the growth and multiplication of bacteria. This is how it works to treat urinary tract infections.
Common side effects of Nitrofurantoin and Cranberry Extract include headache, nausea, and flatulence.