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nitrofurantoin

(Science: chemical) A urinary anti-infective agent effective against most gram-positive and gram-negative organisms. Although sulfonamides and antibiotics are usually the agents of choice for urinary tract infections, nitrofurantoin is widely used for prophylaxis and long-term suppression.

Pharmacological action: anti-infective agents, urinary.

Chemical name: 2,4-Imidazolidinedione, 1-(((5-nitro-2-furanyl)methylene)amino)-