Milk Of Magnesia Original
magnesium hydroxide · Liquid · Oral
Active ingredient
Active ingredient (in each 15 mL) Magnesium hydroxide 1200 mg
Purpose
Purpose Saline laxative
Uses
Uses relieves occasional constipation (irregularity) generally produces bowel movement in 1/2 to 6 hours
Warnings
Warnings Ask a doctor before use if you have kidney disease a magnesium-restricted diet stomach pain, nausea, or vomiting a sudden change in bowel habits that lasts over than 14 days Ask a doctor or pharmacist before use if you are taking a prescription drug. This product may interact with certain prescription drugs. Stop use and ask a doctor if you have rectal bleeding or no bowel movement after using this product. These could be signs of a serious condition. you need to use a laxative for more than 1 week If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
Keep out of reach of children
Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
Directions
Directions shake well before use do not exceed the maximum recommended daily dose in a 24 hour period dose may be taken once a day preferably at bedtime, in divided doses, or as directed by a doctor drink a full glass (8 oz) of liquid with each dose age dose adults and children 12 years and over 30 mL to 60 mL children 6 to 11 years 15 mL to 30 mL children under 6 years ask a doctor
Other information
Other information each 15 mL contains: magnesium 500 mg avoid freezing store at room temperature tightly closed
Inactive ingredients
Inactive ingredients purified water, sodium hypochlorite
Questions?
Questions or comments? 1-800-540-3765
Label text from the FDA structured product label by GOODSENSE (revised May 11, 2026). Long sections are shortened; the complete label is on DailyMed.
Active ingredients
- Magnesium Hydroxide in 7 products
Milk Of Magnesia Original NDC products (7)
| NDC | Strength & form | Labeler | Type |
|---|---|---|---|
| 60687-429 | Magnesium Hydroxide 1200 mg/15mL Liquid | American Health Packaging | OTC MONOGRAPH DRUG |
| 17856-0788 | Magnesium Hydroxide 1200 mg/15mL Liquid | ATLANTIC BIOLOGICALS CORP. | OTC MONOGRAPH DRUG |
| 63868-787 | Magnesium Hydroxide 1200 mg/15mL Liquid | Chain Drug Marketing Association | OTC MONOGRAPH DRUG |
| 83324-188 | Magnesium Hydroxide 1200 mg/15mL Liquid | Chain Drug Marketing Association | OTC MONOGRAPH DRUG |
| 57896-649 | Magnesium Hydroxide 1200 mg/15mL Liquid | Geri-Care Pharmaceuticals, Corp | OTC MONOGRAPH DRUG |
| 50804-649 | Magnesium Hydroxide 1200 mg/15mL Suspension | GOODSENSE | OTC MONOGRAPH DRUG |
| 0904-0788 | Magnesium Hydroxide 1200 mg/15mL Liquid | MAJOR Pharmaceuticals Inc. | OTC MONOGRAPH DRUG |
Frequently asked questions
What is Milk Of Magnesia Original used for?
Uses relieves occasional constipation (irregularity) generally produces bowel movement in 1/2 to 6 hours
Who makes Milk Of Magnesia Original?
Milk Of Magnesia Original is listed by 6 labelers in the FDA NDC directory, including American Health Packaging, ATLANTIC BIOLOGICALS CORP., Chain Drug Marketing Association, Geri-Care Pharmaceuticals, Corp.