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Milk of Magnesia

Dosage form
SUSPENSION
Labeler
PAI Holdings, LLC dba PAI Pharma
Label updated
2026-01-22
Retrieved
2026-09-07
Active ingredients
MAGNESIUM HYDROXIDE
View original label and images on DailyMed ↗
Label information

Drug Facts

Active ingredient (in each 30 mL dose)

Magnesium hydroxide 2400 mg

Purpose

Antacid / Saline Laxative

Uses as Antacid

•  relieves
   •  heartburn
   •  sour stomach
   •  acid indigestion
   •  and upset stomach associated with these symptoms

Uses as Saline Laxative

•  for relief of occasional constipation (irregularity)
•  this product generally produces bowel movement in 1/2  to 6 hours

Warnings for Antacid

Ask a doctor before use if you have

  • kidney disease
  • a magnesium-restricted diet

Label information

Ask a doctor or pharmacist before use If you are presently taking a prescription drug. Antacids may interact with certain prescription drugs.

When using this product

•  do not take more than 60 mL (2 doses) in a 24-hour period
•  do not use the maximum dosage for more than 2 weeks except under the advice and superision of a doctor
•  may cause a laxative effect

Label information

If pregnant or breast-feeding, ask a health professional before use.

Label information

Keep out of reach of children. In case of overdose, get medical help or contact a poison control center right away.

Warnings for Saline Laxative

Ask a doctor before use if you have

•  kidney disease
•  a magnesium-restricted diet
•  abdominal pain, nausea, or vomiting
•  a sudden change in bowel habits that lasts more than 2 weeks

Ask a doctor or pharmacist before use If you are

•  presently 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 that 1 week

Label information

If pregnant or breast-feeding, ask a health professional before use.

Label information

Keep out of reach of children. In case of overdose, get medical help or contact a poison control center right away.

Directions for Antacid

•  shake well before use
•  mL=milliliters
•  adults and children 12 years of age or older: 30 mL (1 dose) up to 2 times a day or as directed by a doctor
•  children under 12 years of age: ask a doctor

Directions for Saline Laxative

•  do not exceed the maximum recommended daily dose of 60 mL in a 24 hour period
•  shake well before use
•  mL=milliliters
•  drink a full glass (8 oz) of liquid with each dose
•  adults and children 12 years of age or older: 30 mL to 60 mL (1 to 2 doses)
•  children under 12 years of age: ask a doctor
•  the dose may be taken as a single daily dose or in divided doses

Other information for Antacid

  each 30 mL contains: magnesium 1 g
•  store at 20-25°C (68-77°F)
•  protect from freezing
•  tamper-evident: do not use if seal on cup is missing or torn

Other information for Saline Laxative

  each 30 mL contains: magnesium 1 g
•  store at 20-25°C (68-77°F)
•  protect from freezing
•  tamper-evident: do not use if seal on cup is missing or torn

Inactive ingregients

Inactive ingredients  antifoam af emulsion, flavoring, hydroxypropyl methylcellulose, methylparaben, potassium citrate, propylene glycol, propylparaben, purified water, sodium saccharin, sorbitol

Questions or comments?

Questions or comments?  call 1-800-845-8210

Label information

Distributed by:
PAI Pharma
Greenville, SC 29605
www.paipharma.com

R04/25

PRINCIPAL DISPLAY PANEL - 30 mL Cup Tray Label

Delivers 30 mL
NDC 0121-0431-30

Milk of Magnesia USP
Magnesium Hydroxide 2400 mg
Antacid / Saline Laxative
SHAKE WELL

Package Not Child-Resistant
Dist. by: PAI Parma
Greenville, SC 29605
SEE DRUG FACTS INSERT

F0431300924

[Image in the official label — see DailyMed source]

DailyMed Set ID: 2de868a0-c652-473c-8b61-636083b7f757 · Version 7
NDC: 0121-0431