Source:http://linkedlifedata.com/resource/umls/id/C0027353
MSH: A synthetic 1,8-naphthyridine antimicrobial agent with a limited bacteriocidal spectrum. It is an inhibitor of the A subunit of bacterial DNA GYRASE.,NCI: A synthetic quinolone and antibacterial agent with urinary tract antiseptic activity. Nalidixic acid concentrates in the renal tubules and bladder and exerts its local antibacterial actions by interference of DNA gyrase activity, thereby inhibiting DNA synthesis during bacterial replication in a dose-dependent manner. Nalidixic acid is active against most gram-negative organisms that cause urinary tract infections.