Magnesium Hydroxide
Milk of Magnesia, Pedia-Lax, and various generics
41.69% Elemental Magnesium
Antacid, laxative
| ? | 1 | Yes | No | No |
| Key |
- Oral liquid (OTC): 400 mg/5 mL (Milk of Magnesia and others) (355, 473 mL)
- Concentrated oral liquid (OTC): 2400 mg/10 mL (Milk of Magnesia concentrate) (10 mL)
- Chewable tabs (Pedia-Lax, see remarks [OTC]): 400 mg
- 400 mg magnesium hydroxide is equivalent to 166.76 mg elemental magnesium.
- Combination product with aluminum hydroxide: See Aluminum Hydroxide.
There's more to see -- the rest of this topic is available only to subscribers.
Citation
Hughes, Helen K., and Lauren K. Kahl, editors. "Magnesium Hydroxide." Harriet Lane Handbook, 23rd ed., Elsevier, 2024. Harriet Lane, www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309645/2/Magnesium_Hydroxide.
Magnesium Hydroxide. In: Hughes HKH, Kahl LKL, eds. Harriet Lane Handbook. Elsevier; 2024. https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309645/2/Magnesium_Hydroxide. Accessed May 3, 2026.
Magnesium Hydroxide. (2024). In Hughes, H. K., & Kahl, L. K. (Eds.), Harriet Lane Handbook (23rd ed.). Elsevier. https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309645/2/Magnesium_Hydroxide
Magnesium Hydroxide [Internet]. In: Hughes HKH, Kahl LKL, editors. Harriet Lane Handbook. Elsevier; 2024. [cited 2026 May 03]. Available from: https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309645/2/Magnesium_Hydroxide.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - Magnesium Hydroxide
ID - 309645
ED - Hughes,Helen K,
ED - Kahl,Lauren K,
BT - Harriet Lane Handbook
UR - https://www.unboundmedicine.com/harrietlane/view/Harriet_Lane_Handbook/309645/2/Magnesium_Hydroxide
PB - Elsevier
ET - 23
DB - Harriet Lane
DP - Unbound Medicine
ER -

Harriet Lane Handbook

