Can you tell me about nitrofurantoin & ciprofloxacin?

Antibiotics. Nitrofurantoin is an antibiotic that is often used to treat urinary tract infections. Ciprofloxacin is fluoroquinolone antibiotic. "Antagonism has been demonstrated in vitro between nitrofurantoin and quinolone antimicrobials." (http://www.drugs.com/pro/nitrofurantoin-capsules.html)