Nalidixic acid

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Nalidixic acid
Systematic (IUPAC) name
1-ethyl-7-methyl-4-oxo-[1,8]naphthyridine-3-carboxylic acid
Identifiers
CAS number 389-08-2
ATC code J01MB02
PubChem 4421
DrugBank APRD01133
Chemical data
Formula C12H12N2O3 
Mol. mass 232.235 g/mol
Pharmacokinetic data
Bioavailability  ?
Protein binding 90%
Metabolism Partially Hepatic
Half life 6-7 hours, significantly longer in renal impairment
Excretion  ?
Therapeutic considerations
Pregnancy cat.

B U.S.

Legal status
Routes Oral

Nalidixic acid is the basis for quinolone antibiotics.

It acts bacteriostatically (that is, it inhibits growth and reproduction) or bactericidally (it kills them) on both Gram positive and Gram negative bacteria, depending on the concentration.

It is especially used in treating urinary tract infections, caused for example by Escherichia coli, Proteus, shigella, Enterobacter and Klebsiella.

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