犬への経口および静脈内投与後のプラドフロクサシン薬理学は,感受性の高い細菌による感染を治療するのに十分な血濃度を示しています
American journal of veterinary research
|September 3, 2025
まとめ
この研究では,口服およびIVで投与されたプラドフロクサシンは,敏感な細菌感染症の治療に十分な血濃度に達した. プラドフロクサシンは口服でよく吸収され,副作用は認められませんでした.
科学分野:
- 獣医薬学
- 薬理学
- 抗菌療法
背景:
- プラドフロクサシンは,獣医学で使用されるフルオロキノロン抗生物質です.
- 犬の細菌感染症の効果的な治療には,その薬理学プロファイルを理解することが重要です.
研究 の 目的:
- 健康な犬の口服および静脈内投与後のプラドフロクサシンの薬動性を評価する.
- 血濃度が,感受性の高い細菌感染症の治療に適しているかどうかを判断する.
主な方法:
- 6匹の健康な犬を対象にクロスオーバー研究が実施された.
- プラドフロクサシンは口服および静脈内投与で10 mg/ kg投与された.
- 高性能液体染色法 (HPLC) で血濃度が測定され,非線形混合効果モデリングを用いて分析が行われました.
主要な成果:
- 経口投与により,最大血濃度は3. 4μg/ mL,経口生物利用率は69%であった.
- 消去半減期は口服後に5. 42時間,IV投与後に8. 1時間でした.
- 系統的なクリアランスは0. 20L/ kg/ hで,配分量は2. 06L/ kgであった.
結論:
- プラドフロクサシンは口服でよく吸収され,IV注射では有害な作用は示されなかった.
- グラム陽性およびグラム陰性細菌感染症の治療において,達成されたプラズマ濃度は,薬理動力学目標を達成することを支援する.
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