Magnesium Oxide Antacid (Dyspepsia/Acid Indigestion) Maximum Daily Dose
For oral magnesium oxide 400 mg tablets labeled for antacid use, the maximum labeled dosing is no more than 2 tablets in a 24-hour period. [1]
Maximum Amounts per 24 Hours
- Maximum magnesium oxide (compound) dose: 800 mg/day (2 × 400 mg tablets). [1]
- Maximum elemental magnesium dose: 480 mg/day (2 × 240 mg elemental magnesium per tablet). [1]
Additional Safety Labeling
- Use beyond the labeled maximum dosing duration is restricted: do not use the maximum dosage for more than 2 weeks without clinician supervision. [1]
- Clinician input is recommended with kidney disease. [1]