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Zinc × Fluoroquinolones

MODERATE INTERACTION — Well-Established Evidence

⚠️ Mechanism

Zinc chelates fluoroquinolone antibiotics, reducing absorption.

📋 Effect

Reduced antibiotic absorption and efficacy

💊 Management

Separate doses by at least 2 hours before or 6 hours after antibiotic.

Plain Language Summary

This combination can be problematic because zinc binds to the antibiotic, which may prevent your body from absorbing the full dose. This can make the treatment less effective. The data indicates that doses should be separated by at least 2 hours before or 6 hours after the antibiotic.

Source

FDA fluoroquinolone labeling

Supporting Research

Oral zinc for treating diarrhoea in children PMID:27996088 DOI:10.1002/14651858.CD005436.pub5 2016
Zinc for the prevention or treatment of acute viral respiratory tract infections in adults: a rapid systematic review and meta-analysis of randomised controlled trials PMID:34728441 DOI:10.1136/bmjopen-2020-047474 2021
Compression bandages or stockings versus no compression for treating venous leg ulcers PMID:34308565 DOI:10.1002/14651858.CD013397.pub2 2021
Zinc for the common cold PMID:23775705 DOI:10.1002/14651858.CD001364.pub4 2013
Interventions for managing halitosis PMID:31825092 DOI:10.1002/14651858.CD012213.pub2 2019
Interventions for itch in people with advanced chronic kidney disease PMID:33283264 DOI:10.1002/14651858.CD011393.pub2 2020
Topical antimicrobial agents for treating foot ulcers in people with diabetes PMID:28613416 DOI:10.1002/14651858.CD011038.pub2 2017
Local interventions for the management of alveolar osteitis (dry socket) PMID:36156769 DOI:10.1002/14651858.CD006968.pub3 2022
Medical Disclaimer: This interaction record is for informational and educational purposes only and does not constitute medical advice. Drug-supplement interactions can be dangerous. Always consult your healthcare provider or pharmacist before combining any supplement with prescription medications. Do not stop or change any medication without professional guidance.