How long does levaquin stay in system?
It depends on your body’s ability to eliminate the drug. If you have normal kidney and liver function, levaquin is almost completely eliminated from your system in about 32-40 hours. The above comment of 16 hours is incorrect. Levaquin is often dosed once daily. If the medication was completely gone from your system in 16 hours, it would have to be dosed more frequently than that. The half-life is approximately 6-8 hours in a person with normal kidney function. It takes 4-5 half-lives for a drug to be completely eliminated from your body (32-40 hours).