Nitrofurantoin Clinical Efficacy and Guidelines

Clinical Applications and Efficacy

The Infectious Diseases Society of America and the European Association of Urology recommend nitrofurantoin as a first-line agent for uncomplicated urinary tract infections, due to its bactericidal properties 1, 2
Nitrofurantoin has been successfully used for decades for both treatment and prophylaxis of urinary tract infections, with clinical cure rates ranging from 88-93% 1
Bacterial cure rates with nitrofurantoin range from 81-92% for uncomplicated urinary tract infections in women 1
The American Urological Association and other guideline societies support the use of nitrofurantoin, with a 5-day regimen of nitrofurantoin monohydrate/macrocrystals (100 mg twice daily) showing equivalent clinical and microbiological cure rates to other bactericidal antibiotics like trimethoprim-sulfamethoxazole 1

Nitrofurantoin is contraindicated in patients with creatinine clearance <60 mL/min due to inadequate urinary drug concentrations that would prevent bactericidal activity 3