Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/24/2025

Maalox Interactions and Special Populations

Drug Interactions

  • The American Thoracic Society notes that moxifloxacin, trovafloxacin, and other fluoroquinolones have significantly reduced absorption when taken with Maalox, with a recommended administration of Maalox at least 4 hours after fluoroquinolone administration 1, 2

Special Populations

  • The American Geriatrics Society recommends that elderly patients may require dose reduction due to increased risk of side effects with aluminum-containing antacids, and patients with renal impairment should use caution, as aluminum can accumulate in the body with chronic use 3