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Overview
| Trade Names: | Zagam |
|---|---|
| PharmGKB Accession Id: | PA451472 |
Description
Sparfloxacin is a fluoroquinolone antibiotic used in the treatment of bacterial infections. Sparfloxacin exerts its antibacterial activity by inhibiting DNA gyrase, a bacterial topoisomerase. DNA gyrase is an essential enzyme which controls DNA topology and assists in DNA replication, repair, deactivation, and transcription. (source: Drug Bank)
Indication
For the treatment of adults with the following infections caused by susceptible strains microorganisms: community-acquired pneumonia (caused by <i>Chlamydia pneumoniae</i>, <i>Haemophilus influenzae</i>, <i>Haemophilus parainfluenzae</i>, <i>Moraxella catarrhalis</i>, <i>Mycoplasma pneumoniae</i>, or <i>Streptococcus pneumoniae</i>) and acute bacterial exacerbations of chronic bronchitis (caused by <i>Chlamydia pneumoniae</i>, <i>Enterobacter cloacae</i>, <i>Haemophilus influenzae</i>, <i>Haemophilus parainfluenzae</i>, <i>Klebsiella pneumoniae</i>, <i>Moraxella catarrhalis</i>, <i>Staphylococcus aureus</i>, or <i>Streptococcus pneumoniae</i>). (source: Drug Bank)
ATC Therapeutic Category
- J01MA:Fluoroquinolones
Pharmacology, Interactions, and Contraindications
Mechanism Of Action
The bactericidal action of sparfloxacin results from inhibition of the enzymes topoisomerase II (DNA gyrase) and topoisomerase IV, which are required for bacterial DNA replication, transcription, repair, and recombination. (source: Drug Bank)
Pharmacology
Sparfloxacin is a synthetic fluoroquinolone broad-spectrum antimicrobial agent in the same class as ofloxacin and norfloxacin. Sparfloxacin has in vitro activity against a wide range of gram-negative and gram-positive microorganisms. Sparfloxacin exerts its antibacterial activity by inhibiting DNA gyrase, a bacterial topoisomerase. DNA gyrase is an essential enzyme which controls DNA topology and assists in DNA replication, repair, deactivation, and transcription. Quinolones differ in chemical structure and mode of action from (beta)-lactam antibiotics. Quinolones may, therefore, be active against bacteria resistant to (beta)-lactam antibiotics. Although cross-resistance has been observed between sparfloxacin and other fluoroquinolones, some microorganisms resistant to other fluoroquinolones may be susceptible to sparfloxacin. In vitro tests show that the combination of sparfloxacin and rifampin is antagonistic against Staphylococcus aureus. (source: Drug Bank)
Absorption, Distribution, Metabolism, Elimination & Toxicity
Biotransformation
Hepatic. Metabolized primarily by phase II glucuronidation to form a glucuronide conjugate. Metabolism does not utilize or interfere with the cytochrome P450 enzyme system. (source: Drug Bank)
Protein Binding
Low plasma protein binding in serum at about 45%. (source: Drug Bank)
Absorption
Well absorbed following oral administration with an absolute oral bioavailability of 92%. Unaffected by administration with milk or food, however concurrent administration of antacids containing magnesium hydroxide and aluminum hydroxide reduces the oral bioavailability of sparfloxacin by as much as 50%. (source: Drug Bank)
Toxicity
Single doses of sparfloxacin were relatively non-toxic via the oral route of administration in mice, rats, and dogs. No deaths occurred within a 14-day post-treatment observation period at the highest oral doses tested, up to 5000 mg/kg in either rodent species, or up to 600 mg/kg in the dog. Clinical signs observed included inactivity in mice and dogs, diarrhea in both rodent species, and vomiting, salivation, and tremors in dogs. (source: Drug Bank)
Isomeric SMILES Code:
C[C@@H]1CN(C[C@@H](N1)C)c2c(c(c3c(c2F)n(cc(c3=O)C(=O)O)C4CC4)N)F (source: Drug Bank)
The following genes are in curated knowledge about this drug.
| Gene | Relationship | Evidence | |
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ABCB1 |
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Publications |
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KCNH2 |
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Publications |
A list of non-curated publications that mention this drug along with other genes is available.
Drug Targets
| Gene | Description | |
|---|---|---|
| TOP2A |
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(source: Drug Bank) |
PharmGKB Curated Pathways
A list of non-curated publications that mention this drug along with other drugs is available.
Non-Curated Information
A list of non-curated publications that mention this drug along with other diseases is available.
Additional Datasets
These datasets are minimally curated and are sorted alphabetically by title.
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Non-Curated Publications
A list of non-curated publications that mention this drug is available.
