A method for determining nitrofurantoin in urine in the presence of phenazopyridine hydrochloride and its metabolites.
D000473:Alkanes; D000535:Aluminum; D000779:Anesthetics, Local / Q000652:urine*; D001391:Azo Compounds / Q000652:urine*; D002845:Chromatography; D004355:Drug Stability; D006801:Humans; D008722:Methods; D009581:Nitrofurans / Q000032:analysis* / Q000652:urine*; D010087:Oxides; D010621:Phenazopyridine / Q000032:analysis / Q000378:metabolism / Q000652:urine; D011725:Pyridines / Q000652:urine*; D000644:Quaternary Ammonium Compounds; D012995:Solubility; D013053:Spectrophotometry; D014466:Ultraviolet Rays
D000473:Alkanes; D000779:Anesthetics, Local; D001391:Azo Compounds; D009581:Nitrofurans; D010087:Oxides; D011725:Pyridines; D000644:Quaternary Ammonium Compounds; D000535:Aluminum; D010621:Phenazopyridine