Magnesium Oxide
Mag-200, Mag-Ox 400, and other generics
60.32% Elemental Magnesium
Oral magnesium salt
| A/? | 1 | Yes | No | No |
| Key |
- Tabs (OTC): 100, 200, 250, 400, 420, 500 mg
- Caps (OTC): 300, 500 mg
- 400 mg magnesium oxide is equivalent to 241.3 mg elemental Mg or 20 mEq Mg.
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Citation
Hughes, Helen K., and Lauren K. Kahl, editors. "Magnesium Oxide." Harriet Lane Handbook, 23rd ed., Elsevier, 2024. Harriet Lane, www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309532/all/Magnesium_Oxide.
Magnesium Oxide. In: Hughes HKH, Kahl LKL, eds. Harriet Lane Handbook. Elsevier; 2024. https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309532/all/Magnesium_Oxide. Accessed April 16, 2026.
Magnesium Oxide. (2024). In Hughes, H. K., & Kahl, L. K. (Eds.), Harriet Lane Handbook (23rd ed.). Elsevier. https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309532/all/Magnesium_Oxide
Magnesium Oxide [Internet]. In: Hughes HKH, Kahl LKL, editors. Harriet Lane Handbook. Elsevier; 2024. [cited 2026 April 16]. Available from: https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309532/all/Magnesium_Oxide.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - Magnesium Oxide
ID - 309532
ED - Hughes,Helen K,
ED - Kahl,Lauren K,
BT - Harriet Lane Handbook
UR - https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309532/all/Magnesium_Oxide
PB - Elsevier
ET - 23
DB - Harriet Lane
DP - Unbound Medicine
ER -

Harriet Lane Handbook

