Milk of Magnesia

Manufacturer
Cardinal Health 107, LLC
Effective date
2026-06-05
Label type
HUMAN OTC DRUG LABEL
Version
14
Source
daily-update
Hydrated at
2026-06-16 05:10:10

Label at a glance#

ProductMilk of Magnesia
Active ingredientMAGNESIUM HYDROXIDE
Label structure11 sections

Indications and uses

• heartburn • upset/sour stomach • acid indigestion • occasional constipation (irregularity)

Dosage and administration

• do not exceed the maximum recommended daily dose in a 24 hour period • shake well before use • can be taken with water • mL = milliliter adults and children 12 years of age and over 5 to 15 mL (1 to 3 teaspoonfuls) children under 12 years of age ask a doctor • do not exceed the maximum recommended daily dose of 60 mL in a 24 hour period • shake well before use • dose may be taken once a day preferably at bedtime...

Storage and handling

• each teaspoonful (5 mL) contains: magnesium 400 mg • store at room temperature, 20° - 25°C (68° - 77°F). Avoid freezing. • Milk of Magnesia USP (white suspension, spearmint flavor) is supplied in the following oral dosage form: Overbagged with 5 x 30 mL unit dose cup in each bag, NDC 55154-9403-5 WARNING: This Unit Dose package is not child resistant and is Intended for Institutional Use Only. Keep this and all ...

Label contents#

Full prescribing information#

SPL UNCLASSIFIED SECTION

Drug Facts

Active ingredient (in each 5 mL)

OTC - ACTIVE INGREDIENT SECTION

Magnesium hydroxide 400 mg

Purpose

OTC - PURPOSE SECTION

Saline laxative

Uses

INDICATIONS & USAGE SECTION

As an Antacid

SPL UNCLASSIFIED SECTION

  • heartburn
  • upset/sour stomach
  • acid indigestion

As a Laxative (usually within ½ to 6 hours)

SPL UNCLASSIFIED SECTION

  • occasional constipation (irregularity)

Warnings

WARNINGS SECTION

Ask a doctor before use if you have

OTC - ASK DOCTOR SECTION

  • kidney disease
  • a magnesium-restricted diet
  • stomach pain, nausea, or vomiting
  • a sudden change in bowel habits that lasts over 14 days

OTC - ASK DOCTOR/PHARMACIST SECTION

Ask a doctor or pharmacist before use If you aretaking a prescription drug. This product may interact with certain prescription drugs.

Stop use and ask a doctor if

OTC - STOP USE SECTION

  • 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

OTC - PREGNANCY OR BREAST FEEDING SECTION

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

OTC - KEEP OUT OF REACH OF CHILDREN SECTION

Keep out of reach of children.In case of overdose, get medical help or contact a Poison Control Center right away.

Directions

DOSAGE & ADMINISTRATION SECTION

As an Antacid

SPL UNCLASSIFIED SECTION

  • do not exceed the maximum recommended daily dose in a 24 hour period
  • shake well before use
  • can be taken with water
  • mL = milliliter

adults and children 12 years of age and over

5 to 15 mL (1 to 3 teaspoonfuls)

children under 12 years of age

ask a doctor

As a Laxative

SPL UNCLASSIFIED SECTION

  • do not exceed the maximum recommended daily dose of 60 mL in a 24 hour period
  • shake well before use
  • 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.
  • mL = milliliter; TBSP = Tablespoon

adults and children 12 years and older

30 mL (2 TBSP) to 60 mL (4 TBSP)

children 6 – 11 years

15 mL (1 TBSP) to 30 mL (2 TBSP)

children under 6 years

ask a doctor

Other information

STORAGE AND HANDLING SECTION

  • each teaspoonful (5 mL) contains:magnesium 400 mg
  • store at room temperature, 20° - 25°C (68° - 77°F). Avoid freezing.
  • Milk of Magnesia USP (white suspension, spearmint flavor) is supplied in the following oral dosage form:

Overbagged with 5 x 30 mL unit dose cup in each bag, NDC 55154-9403-5

WARNING: This Unit Dose package is not child resistant and is Intended for Institutional Use Only. Keep this and all drugs out of the reach of children.

Inactive ingredients

INACTIVE INGREDIENT SECTION

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

Questions or comments?

OTC - QUESTIONS SECTION

Call 1-800-845-8210

SPL UNCLASSIFIED SECTION

MANUFACTURED BY
Pharmaceutical
Associates, Inc.
Greenville, SC 29605

Distributed By:

Cardinal Health

Dublin, OH 43017

L33325170526

F0431300721

Principal Display Panel

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

NDC 55154-9403-5

MILK OF MAGNESIA USP

5 CUPS

2400mg bag label
2400mg bag label

Product Linked Resources#

Resource, Code type, Value table
ResourceCode typeValueEquivalent identifiersSource image
BarcodeEAN-130055154940351GTIN-13: 0055154940351
EAN-13: 0055154940351
GTIN-12: 055154940351
UPC-A: 055154940351
GTIN storage (14 digits): 00055154940351
2748eddf-6c91-3494-e063-6294a90a5ae2-00.jpg

DailyMed Product Concepts#

Product concept, Relation, Version table
Product conceptRelationVersionEffective
6e3c022f-0786-43f1-8857-edff89d5153fProduct name120260309
95250459-30e4-45c1-b08a-993044f49109Product name220250805
efd58652-cb8f-4018-91ca-4b0eb2ff729fProduct name720240226
362d7abb-94e6-4c60-9a58-266894157713Product name120231023
e2db08c6-133f-4f4f-afb4-e90a2418d6f6Product name120230320
6bd95106-a412-1dad-b9cc-4cb74bfb27ceProduct name220230315
ce6d5c06-3ae0-18a6-d5b3-8cd3cc0f8906Product name720210625
9badc7be-250a-44ab-aa36-926af3f02679Product name120210527
2641ccb3-721d-4fbf-9f2f-ca2f18157a62Product name320210309
11ed6f83-cdd2-4637-8379-b1a1d3ae3cdeProduct name120181101
7cda52fc-125f-421c-8fea-bc1974370c49Product name220180703
86c45a79-b9f0-4476-a27c-6e10db098497Product name120180125
26acd337-b838-40ac-bcbc-05c3b81c8712Product name120170323
d5e51f11-ad28-caa4-4b49-4143974782adProduct name120150831
290f523a-f9db-9774-b5a9-e1f908ac1782Product name120150828
e7e58cd3-cacb-49df-8d34-1ee335614abbProduct name120150609
0ca1d589-929b-4b33-bc5b-1d84abdafa6aProduct name120150324
fc363c46-397b-4476-ac0f-70e43e8e4592Product name120150324
6084a4f4-5437-c9a5-caec-5361ee075a59Product name120140508
90c5639a-61b0-88d6-ddcf-21888e94869aProduct name120140508
9514609b-a2a9-f8ec-6ba6-3f8e5ee89877Product name120140508
c6b65c52-69c7-df49-550a-a50c137f6218Product name120140508

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDCBilling unitProduct NDCDailyMed indexing SPLSPL versionEffective
55154-9403-5ML - Milliliter55154-9403cd1dd0d5-3352-499c-8e98-7c0162b9745012020-03-10
0121-0431-30ML - Milliliter0121-04318f8054f2-185a-40d8-992f-43c890584ab412014-10-03

DailyMed Socrata Ingredients#

Ingredient, Type, UNII table
IngredientTypeUNIISPL versionUploaded
MAGNESIUM HYDROXIDEACTIVE INGREDIENTNBZ3QY004S4
HYDROXIDE IONACTIVE MOIETY9159UV381P4
HYPROMELLOSESINACTIVE INGREDIENT3NXW29V3WO4
METHYLPARABENINACTIVE INGREDIENTA2I8C7HI9T4
POTASSIUM CITRATEINACTIVE INGREDIENTEE90ONI6FF4
PROPYLENE GLYCOLINACTIVE INGREDIENT6DC9Q167V34
PROPYLPARABENINACTIVE INGREDIENTZ8IX2SC1OH4
SACCHARIN SODIUMINACTIVE INGREDIENTSB8ZUX40TY4
SORBITOLINACTIVE INGREDIENT506T60A25R4
WATERINACTIVE INGREDIENT059QF0KO0R4

Products#

Every source-derived product name is available through these pages.

DailyMed product names page 1 of 1 · 13 matching rows.

NDC Codes#

Product NDC, Package NDC table
Product NDCPackage NDC
55154-940355154-9403-5
0121-0431

Ingredients#

Every source-derived ingredient row is available through these pages.

DailyMed ingredient rows page 1 of 1 · 10 matching rows.

Source Document#

Source XML

Older Hydrated Versions#

Version, Effective date, Source table
VersionEffective dateSourceHydrated
132025-04-22full-release2026-06-01 01:00:23

Inactive ingredient matches#

Inactive Ingredient Database values describe FDA-listed use contexts. The match method and ambiguity count are shown because ingredient names, routes, and dosage forms are not always unique. Browse recovered IID releases and source provenance.

Inactive ingredient links page 1 of 1 · 21 matching rows.

DailyMed ingredient, IID ingredient, UNII table
DailyMed ingredientIID ingredientUNIIDosage form / routePotencyMaximum daily exposureMatch
POTASSIUM CITRATEPOTASSIUM CITRATEEE90ONI6FFSUSPENSION / ORALNAExact identifier — unii+route+dosage form
3 equally ranked IID candidates
PROPYLENE GLYCOLPROPYLENE GLYCOL6DC9Q167V3SUSPENSION / ORAL27120 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
PROPYLENE GLYCOLPROPYLENE GLYCOL6DC9Q167V3SUSPENSION / ORAL27120 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
METHYLPARABENMETHYLPARABENA2I8C7HI9TSUSPENSION / ORAL388 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
HYPROMELLOSESHYPROMELLOSE3NXW29V3WOSUSPENSION / ORAL305 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
POTASSIUM CITRATEPOTASSIUM CITRATEEE90ONI6FFSUSPENSION / ORALNAExact identifier — unii+route+dosage form
3 equally ranked IID candidates
PROPYLPARABENPROPYLPARABENZ8IX2SC1OHSUSPENSION / ORAL64 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
SORBITOLSORBITOL506T60A25RSUSPENSION / ORAL45000 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
POTASSIUM CITRATEPOTASSIUM CITRATEEE90ONI6FFSUSPENSION / ORALNAExact identifier — unii+route+dosage form
3 equally ranked IID candidates
HYPROMELLOSESHYPROMELLOSE3NXW29V3WOSUSPENSION / ORAL305 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
PROPYLPARABENPROPYLPARABENZ8IX2SC1OHSUSPENSION / ORAL64 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
PROPYLENE GLYCOLPROPYLENE GLYCOL6DC9Q167V3SUSPENSION / ORAL27120 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
SORBITOLSORBITOL506T60A25RSUSPENSION / ORAL45000 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
SACCHARIN SODIUMSACCHARIN SODIUMSB8ZUX40TYSUSPENSION / ORAL5000 mg/5mlExact identifier — unii+route+dosage form
3 equally ranked IID candidates
SORBITOLSORBITOL506T60A25RSUSPENSION / ORAL45000 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
PROPYLPARABENPROPYLPARABENZ8IX2SC1OHSUSPENSION / ORAL64 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
SACCHARIN SODIUMSACCHARIN SODIUMSB8ZUX40TYSUSPENSION / ORAL5000 mg/5mlExact identifier — unii+route+dosage form
3 equally ranked IID candidates
SACCHARIN SODIUMSACCHARIN SODIUMSB8ZUX40TYSUSPENSION / ORAL5000 mg/5mlExact identifier — unii+route+dosage form
3 equally ranked IID candidates
HYPROMELLOSESHYPROMELLOSE3NXW29V3WOSUSPENSION / ORAL305 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
METHYLPARABENMETHYLPARABENA2I8C7HI9TSUSPENSION / ORAL388 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates
METHYLPARABENMETHYLPARABENA2I8C7HI9TSUSPENSION / ORAL388 mgExact identifier — unii+route+dosage form
3 equally ranked IID candidates

openFDA label cross-check#

OpenFDA label data provides additional search and identifier links. DailyMed’s Structured Product Label is the canonical label on FDA.report. Matching records are deduplicated before they are shown below.

Matched openFDA labels page 1 of 1 · 2 matching rows.

Brand, Generic, Manufacturer table
BrandGenericManufacturerSPL set IDEffective dateAvailable safety fieldsJoin
Milk of MagnesiaMAGNESIUM HYDROXIDECardinal Health 107, LLC144c7242-4ff9-404a-86bf-48e2871eb0cd2026-06-05WarningsExact identifier
ndc (package): 55154-9403-5
ndc (product): 55154-9403
ndc11 (package): 55154940305
spl id: 8b45766b-f076-4f4e-acf3-7ed6fe60bf22
spl set id: 144c7242-4ff9-404a-86bf-48e2871eb0cd
Milk of MagnesiaMAGNESIUM HYDROXIDEPAI Holdings, LLC dba PAI Pharma2de868a0-c652-473c-8b61-636083b7f7572026-01-22WarningsExact identifier
ndc (product): 0121-0431

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.