Is Dairy Products Safe with ciprofloxacin?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Take ciprofloxacin at least 2 hours before or 6 hours after consuming dairy products such as milk, yogurt, or cheese.
Why this interaction occurs
Dairy products contain calcium, a multivalent cation that binds to ciprofloxacin in the gut, decreasing its absorption and resulting in lower serum and urine levels, potentially reducing antibiotic effectiveness.
Evidence
Evidence level: strong.
Data source
FDA Drug Label
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 86,830 reports mentioning ciprofloxacin. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the ciprofloxacin + supplement combination on this page.
FAERS reports are voluntary and cannot prove that a drug caused an event. Do not use report counts to assess the safety of this specific drug-supplement pair.
Frequently asked questions
Related interactions
All Dairy Products interactions → · All ciprofloxacin interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.