Cimetidine and Levofloxacin interaction

Cimetidine and Levofloxacin: the Levofloxacin prescribing label describes an interaction that usually calls for monitoring, a dose change, or spacing the doses.

Moderate

Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.

What the FDA labels say

From the Levofloxacin label · effective 2024-05-22

Moderate

However, these changes do not warrant dosage adjustment for Levofloxacin in 5% Dextrose Injection when probenecid or cimetidine is co-administered.

Drug interactionsnames CimetidineView label on DailyMed
Minor

The AUC and t ½ of levofloxacin were higher while CL/F and CL R were lower during concomitant treatment of Levofloxacin in 5% Dextrose Injection with probenecid or cimetidine compared to Levofloxacin in 5% Dextrose Injection alone.

Drug interactionsnames CimetidineView label on DailyMed
No interaction

Probenecid and Cimetidine No significant effect of probenecid or cimetidine on the C max of levofloxacin was observed in a clinical study involving healthy volunteers.

Drug interactionsnames CimetidineView label on DailyMed

Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.

Open in the checker

Not medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.