FDA.reportPublic FDA data

Magnesium Oxide Tablets 400mg

Manufacturer
Kesin Pharma
Effective date
2025-10-27
Label type
HUMAN OTC DRUG LABEL
Version
2
Source
full-release
Hydrated at
2026-06-01 01:40:57

Label at a glance#

ProductMagnesium Oxide
Active ingredientMAGNESIUM OXIDE
Label structure12 sections

Indications and uses

relieves acid indigestion upset stomach

Dosage and administration

Antacid Directions: take 1 tablet twice a day or as directed by a physician. Magnesium Supplement Directions: take 1 to 2 tablets daily or as directed by a physician.

Label contents#

Full prescribing information#

Supplement Facts

SPL UNCLASSIFIED SECTION

Serving Size 1 Tablet

Serving/ Container 100

Amount per Serving Magnesium 241.3 mg

% Daily Value 60%

Active Ingrendient (in each tablet)

OTC - ACTIVE INGREDIENT SECTION

Magnesium Oxide 400 mg (241.3 mg elemental magnesium)

Purpose

OTC - PURPOSE SECTION

Antacid

Uses

INDICATIONS & USAGE SECTION

relieves

  • acid indigestion
  • upset stomach

Warnings

WARNINGS SECTION

Ask a doctor before use if you have

OTC - ASK DOCTOR SECTION

kidney disease

Ask a doctor or pharmacist before use if you are

OTC - ASK DOCTOR/PHARMACIST SECTION

taking a prescription drug. Antacids may interact with certain prescription drugs.

Do not take

OTC - DO NOT USE SECTION

more than 2 tablets in a 24 hour period or use the maximum dosage of this product for more than two weeks, except under the advice and supervision of a physician.

May have a laxative effect.

If pregnant or breast-feeding,

OTC - PREGNANCY OR BREAST FEEDING SECTION

ask a health professional before use.

Keep out of reach of children.

OTC - KEEP OUT OF REACH OF CHILDREN SECTION

Directions

DOSAGE & ADMINISTRATION SECTION

Antacid Directions:

  • take 1 tablet twice a day or as directed by a physician.

Magnesium Supplement Directions:

  • take 1 to 2 tablets daily or as directed by a physician.

Other Information

OTHER SAFETY INFORMATION

  • Magnesium content per tablet: 241.3 mg
  • Store at controlled room temperature 59ºFto 86ºF (15ºC to 30ºC)

Inactive Ingredients

INACTIVE INGREDIENT SECTION

microcrystalline cellulose, sodium starch glycolate, stearic acid.

Questions or comments?

OTC - QUESTIONS SECTION

1-833-537-4679

SPL UNCLASSIFIED SECTION

Distributed by:

Kesin Pharma

Oldsmar, FL 34677

Rev. 03/2025

Kesin Pharma LogoKesin Pharma Logo

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

NDC 81033-027-12

Magnesium Oxide

400 mg

241.3 mg Elemental Magnesium

Dietary Supplement

120 Tablets

Magnesium Oxide Tablets 400 mgMagnesium Oxide Tablets 400 mg

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

NDC 81033- 027-01

Magnesium Oxide

400 mg

241.3 Elemental Magnesium per Tablet

100 Tablets (10x10 Unit-Dose)

Magnesium Oxide Tablets Carton 100 Tablets (10x10)Magnesium Oxide Tablets Carton 100 Tablets (10x10)

DailyMed RxNorm Mappings#

RxCUI, RxNorm string, TTY table
RxCUIRxNorm stringTTYSPL version
198741magnesium oxide 400 MG Oral TabletPSN2
198741magnesium oxide 400 MG Oral TabletSCD2
198741magnesium oxide 400 MG (magnesium 241.3 MG) Oral TabletSY2

DailyMed Pharmacologic Classes#

Class, Version, Type table
ClassVersionTypeEffective
MAGNESIUM CATION Pharmacologic Class Indexing4Indexing - Pharmacologic Class20180813

Product Linked Resources#

Resource, Code type, Value table
ResourceCode typeValueEquivalent identifiersSource image
BarcodeEAN-130381033027128GTIN-13: 0381033027128
EAN-13: 0381033027128
GTIN-12: 381033027128
UPC-A: 381033027128
GTIN storage (14 digits): 00381033027128		Magnesium Oxide 400 mg.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
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
c6b65c52-69c7-df49-550a-a50c137f6218Product name120140508

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDCProductDescriptionFormQuantityStrengthSPL version
81033-027-01Magnesium Oxide10 in 1 CARTONTABLET102
81033-027-12Magnesium Oxide120 in 1 BOTTLETABLET1202
81033-027-41Magnesium Oxide100 in 1 BLISTER PACKTABLET1002

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDCBilling unitProduct NDCDailyMed indexing SPLSPL versionEffective
81033-027-01EA - Each81033-02719739058-48c9-4d88-9671-511f131bff1b12026-05-22
81033-027-12EA - Each81033-027782cadc8-b6c0-44a0-9b3f-1278a3d24d1d12025-10-14
81033-027-41EA - Each81033-027e07bdfca-b7b4-4057-a0c3-a192951d59cb12026-05-22

Products#

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

DailyMed product names page 1 of 1 · 5 matching rows.

NDC Codes#

Product NDC, Package NDC table
Product NDCPackage NDC
81033-02781033-027-12, 81033-027-41, 81033-027-01

Ingredients#

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

DailyMed ingredient rows page 1 of 1 · 4 matching rows.

Name, UNII, Kind table
NameUNIIKind
CELLULOSE, MICROCRYSTALLINEOP1R32D61UIACT
SODIUM STARCH GLYCOLATE TYPE A POTATO5856J3G2A2IACT
STEARIC ACID4ELV7Z65APIACT
MAGNESIUM OXIDE3A3U0GI71GACTIB

Source Document#

Source XML

Older Hydrated Versions#

Version, Effective date, Source table
VersionEffective dateSourceHydrated
12025-04-04full-release2026-06-01 01:14:39

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 · 1 matching rows.

Brand, Generic, Manufacturer table
BrandGenericManufacturerSPL set IDEffective dateAvailable safety fieldsJoin
Magnesium OxideMAGNESIUM OXIDEKesin Pharma31f417f0-1637-eefa-e063-6294a90a121b2025-10-27WarningsExact identifier
ndc (package): 81033-027-01
ndc (package): 81033-027-12
ndc (package): 81033-027-41
ndc (product): 81033-027
ndc11 (package): 81033002741
ndc11 (package): 81033002712
ndc11 (package): 81033002701
spl id: 4225e628-15ad-6bf0-e063-6394a90a98d6
spl set id: 31f417f0-1637-eefa-e063-6294a90a121b

Reported adverse events (FAERS/openFDA)#

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