Magnesium oxide
MAG-OX
What it isMagnesium salt acting as an osmotic laxative and repletion agent; constipation and hypomagnesemia.
Why this oneHigh elemental magnesium but poor absorption makes it more reliable as a laxative than as repletion.
What limits itDiarrhea is dose-limiting, and magnesium can accumulate dangerously when kidney function is impaired.
FDA label
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| FDA dosing | Population | Start | Target | Max |
|---|---|---|---|---|
| Antacid | Adults | 1–2 tablets QD | 1–2 tablets QD | 2 tablets/day unless directed by a physician |
Renal Undefined
Hepatic Undefined
Label does not state tablet strength (mg).
Pregnancy Undefined
Lactation Undefined
NO BOXED WARNINGS
Principal riskDiarrhea; accumulation in renal impairment
Classes and tags
Clinical profile
Mechanism of action: Magnesium oxide ballicule
