Will taking levofloxacin hydrochloride capsules the night before a medical examination affect the test results?

If you took levofloxacin hydrochloride capsules the night before a medical examination, it may affect the test results, depending generally on the timing of medication intake. The specific analysis is as follows:

1. No effect

After entering the body, the active ingredients of levofloxacin hydrochloride capsules are primarily excreted through urine, with an elimination half-life of approximately 6 hours. If the interval between taking the medication and the examination exceeds 6 hours, it usually does not affect the accuracy of the medical checkup, and the longer the interval, the smaller the potential impact.

2. Possible effect

If the time between taking the medication and undergoing the examination is less than 6 hours, especially in individuals with impaired kidney function, the test results may be affected. Since the drug is mainly metabolized through the kidneys, a shorter interval combined with reduced renal filtration capacity can lead to greater drug accumulation.

Prior to a medical examination, it is important to strictly follow medical instructions for preparation and to adhere to the doctor's guidance during the examination.