What is the half-life of levofloxacin?

Levofloxacin, a fluoroquinolone antibiotic, has a half-life of approximately 7 hours in healthy individuals. This measurement indicates the time it takes for the concentration of the drug in the bloodstream to reduce by half. A half-life of around 7 hours means that levofloxacin can maintain its effective concentration in the body for a significant period, making it suitable for once-daily dosing in many cases.

While the other options suggest different time frames, they do not accurately reflect the pharmacokinetics of levofloxacin. Understanding the half-life is crucial for determining dosing schedules and ensuring therapeutic effectiveness while minimizing potential toxicity. Therefore, recognizing that the half-life is close to 7 hours helps guide appropriate use in clinical settings.