noun. derivative of nitrofuran used as an antibacterial medicine (trade name Macrodantin) effective against a broad range of Gram-positive and Gram-negative bacteria; used to treat infections of the urinary tract.
1. Noun, singular or mass The use of nitrofurantoin in small animal veterinary medicine has been losing popularity due to the drug's higher toxicity and lower performance. 3. Adjective If you are taking digoxin, a fluoroquinolone antibiotic, a tetracycline antibiotic, nitrofurantoin or penicillamine you should consult your physician before using Epsom salts. 4. Noun, plural UTIs can be treated and eradicated with antibiotics such as nitrofurantoin, amoxicillin or ciprofloxacin.