Ciprofloxacin and Magnesium Hydroxide: Drug Interaction Guide

Quick answer: This combination requires caution. Ciprofloxacin and Magnesium Hydroxide can be used together with adjustments and monitoring.

Interaction severity: Moderate — caution required

How Ciprofloxacin interacts with Magnesium Hydroxide

Magnesium-containing antacids chelate ciprofloxacin in the gut and reduce fluoroquinolone absorption. This can lead to subtherapeutic antibiotic exposure.

What you should do

Avoid concurrent dosing; administer ciprofloxacin at least 2 hours before or 4 to 6 hours after magnesium-containing products.

Key facts

Severity

Moderate — caution required

Mechanism

Magnesium-containing antacids chelate ciprofloxacin in the gut and reduce fluoroquinolone absorption. This can lead to s...

Action

Avoid concurrent dosing; administer ciprofloxacin at least 2 hours before or 4 to 6 hours after magnesium-containing pro...

Important medical disclaimer: This page provides educational information about drug interactions for general reference. It is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your specific medications with a qualified healthcare provider before starting, stopping, or changing any treatment. About our editorial team.

Frequently asked questions

Can I take Ciprofloxacin and Magnesium Hydroxide together?

With caution. Avoid concurrent dosing; administer ciprofloxacin at least 2 hours before or 4 to 6 hours after magnesium-containing products.

What is the severity of this interaction?

The interaction between Ciprofloxacin and Magnesium Hydroxide is classified as Moderate — caution required. Magnesium-containing antacids chelate ciprofloxacin in the gut and reduce fluoroquinolone absorption. This can lead to subtherapeutic antibiotic exposure.

What should I do if I'm prescribed both?

Avoid concurrent dosing; administer ciprofloxacin at least 2 hours before or 4 to 6 hours after magnesium-containing products. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

Last reviewed: by iMedic Medical Editorial Team. Our editorial process.