Nalidixic acid

Nalidixic Acid is an oral antibacterial medication used to treat urinary tract infections. It is a quinolone antibiotic, which means it works by stopping bacteria from reproducing. Nalidixic Acid is often prescribed in combination with other antibiotics to increase its effectiveness. Its side effects may include nausea, vomiting, diarrhea, and headache. It should be taken exactly as prescribed by a doctor, and should not be taken for longer than the recommended period.

Nalidixic acid is an antibiotic that belongs to the first generation of a class of drugs called quinolones. Here's a breakdown of its key features:

  • Function: It fights bacterial infections, primarily targeting gram-negative bacteria like E. coli, which are common culprits in urinary tract infections (UTIs).
  • Mechanism: Nalidixic acid works by interfering with an enzyme (DNA gyrase) crucial for bacteria to replicate their DNA. This disrupts their growth and kills them.
  • Dosage: Taken orally, it comes in a bacteriostatic or bactericidal form depending on the concentration. Lower doses tend to inhibit bacterial growth, while higher doses aim to kill them.
  • Limitations: Due to the emergence of antibiotic-resistant bacteria and the availability of more potent and broad-spectrum antibiotics, nalidixic acid is no longer the preferred treatment for UTIs in many countries, including the US.

Here are some additional points to consider:

  • Side effects: Nalidixic acid can cause nausea, diarrhea, headaches, dizziness, rashes, and joint pain.
  • Photosensitivity: It can increase sun sensitivity, so sun protection is crucial while taking it.
Anatomical Therapeutic Chemical Classification
J - Antiinfectives for systemic use
J01 Antibacterials for systemic use
J01M - Quinolone antibacterials
J01MB Other quinolones
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