Drug interactions
Ferric maltol + Moxifloxacin
Severity: Moderate
Ferric maltol and Moxifloxacin: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Oral iron can bind moxifloxacin in the gut and reduce its absorption, which may lead to subtherapeutic antibiotic levels and treatment failure. The effect is relevant only when both are taken orally.
What this interaction means in plain words
Ferric maltol and Moxifloxacin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Ferric maltol belongs to Miscellaneous; Moxifloxacin belongs to Anti Bacterial.
Why it happens
Chelation of moxifloxacin by iron in the gastrointestinal tract reduces absorption.
What to do
Give moxifloxacin at least 4 hours before or 8 hours after ferric maltol. Alternatively delay iron therapy until the antibiotic course is complete.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Ferric maltol and Moxifloxacin, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Moxifloxacin
- Amiodarone + Moxifloxacin Contraindicated
- Arsenic trioxide + Moxifloxacin Contraindicated
- Disopyramide + Moxifloxacin Contraindicated
- Dofetilide + Moxifloxacin Contraindicated
- Dronedarone + Moxifloxacin Contraindicated
- Droperidol + Moxifloxacin Contraindicated
Other interactions of Ferric maltol
- Aluminum hydroxide + Ferric maltol Moderate
- Calcium carbonate + Ferric maltol Moderate
- Calcium + Ferric maltol Moderate
- Carbidopa-entacapone-levodopa + Ferric maltol Moderate
- Carbidopa-levodopa + Ferric maltol Moderate
- Cimetidine + Ferric maltol Moderate
Frequently asked questions
Can I take Ferric maltol with Moxifloxacin?
MediHelp rates the interaction as moderate. Ferric maltol and Moxifloxacin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Oral iron can bind moxifloxacin in the gut and reduce its absorption, which may lead to subtherapeutic antibiotic levels and treatment failure. The effect is relevant only when both are taken orally.
How serious is the interaction between Ferric maltol and Moxifloxacin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give moxifloxacin at least 4 hours before or 8 hours after ferric maltol. Alternatively delay iron therapy until the antibiotic course is complete.
What other medicines interact with Moxifloxacin?
MediHelp also lists interactions of Moxifloxacin with, for example, Amiodarone, Arsenic trioxide, Disopyramide. The full list is on the Moxifloxacin page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
