Home NDC 54738-973 Magnesium Oxide
Product NDC 54738-973
11-digit product format 547380973
Labeler code 54738
Product ID 54738-973_2a329845-3f50-540c-e063-6394a90af0a9
Type HUMAN OTC DRUG
Nonproprietary name Magnesium Oxide
Dosage form TABLET
Route ORAL
Labeler Richmond Pharmaceuticals, Inc.
Application M001
Marketing category OTC MONOGRAPH DRUG
Marketing start 2016-02-01
Substance MAGNESIUM OXIDE
Active strength 400 mg/1
Pharmacologic classes Calculi Dissolution Agent [EPC], Increased Large Intestinal Motility [PE], Inhibition Large Intestine Fluid/Electrolyte Absorption [PE], Inhibition Small Intestine Fluid/Electrolyte Absorption [PE], Magnesium Ion Exchange Activity [MoA], Osmotic Activity [MoA], Osmotic Laxative [EPC], Stimulation Large Intestine Fluid/Electrolyte Secretion [PE]
NDC exclude flag No
Listing certified through 2026-12-31
Current FDA listing Yes Observed NDC auxiliary status history# This history shows the information present in each captured FDA auxiliary file. It is not a continuous regulatory timeline, and a missing record does not establish a status.
Historic NDC status page 1 of 1 · 24 matching rows.
View current auxiliary records. · View the auxiliary file history.
Captured / source date, Dataset, Scope table Captured / source date Dataset Scope Package NDC Snapshot Source SHA-256 2025-12-14 17:58 UTC · source 2025-12-05 excluded product product d630ba8d3edf…732f749b63fb…2025-12-14 17:58 UTC · source 2025-12-05 excluded package package 54738-973-12 d630ba8d3edf…732f749b63fb…2025-08-27 00:01 UTC · source 2025-08-26 excluded product product f5e01cc5f278…a2eaf40c39c3…2025-08-27 00:01 UTC · source 2025-08-26 excluded package package 54738-973-12 f5e01cc5f278…a2eaf40c39c3…2025-04-01 02:39 UTC · source 2025-03-31 excluded product product 2ef7874e63bc…57b86245f4fa…2025-04-01 02:39 UTC · source 2025-03-31 excluded package package 54738-973-12 2ef7874e63bc…57b86245f4fa…2025-03-28 20:22 UTC · source 2025-03-28 excluded product product a1b67e2a42f9…c4cf2c586c0d…2025-03-28 20:22 UTC · source 2025-03-28 excluded package package 54738-973-12 a1b67e2a42f9…c4cf2c586c0d…2025-03-22 03:12 UTC · source 2025-03-21 excluded product product cfe11265f3b6…090c488252e2…2025-03-22 03:12 UTC · source 2025-03-21 excluded package package 54738-973-12 cfe11265f3b6…090c488252e2…2025-03-10 12:48 UTC · source 2025-03-10 excluded product product cdf11ea48f46…ba0047e9e063…2025-03-10 12:48 UTC · source 2025-03-10 excluded package package 54738-973-12 cdf11ea48f46…ba0047e9e063…2025-02-02 03:52 UTC · source 2025-01-31 excluded product product 302b2466d912…e7b80fea0513…2025-02-02 03:52 UTC · source 2025-01-31 excluded package package 54738-973-12 302b2466d912…e7b80fea0513…2025-01-20 13:05 UTC · source 2025-01-20 excluded product product ed331223b511…672a5bd82f5f…2025-01-20 13:05 UTC · source 2025-01-20 excluded package package 54738-973-12 ed331223b511…672a5bd82f5f…2025-01-11 03:41 UTC · source 2025-01-10 excluded product product 0efc9e666f02…f202fb6c5f17…2025-01-11 03:41 UTC · source 2025-01-10 excluded package package 54738-973-12 0efc9e666f02…f202fb6c5f17…2024-11-09 02:27 UTC · source 2024-11-08 excluded product product ad56d346431e…cc804d4bbf1e…2024-11-09 02:27 UTC · source 2024-11-08 excluded package package 54738-973-12 ad56d346431e…cc804d4bbf1e…2024-10-04 04:10 UTC · source 2024-10-03 excluded product product 367a005e9d99…383a685ebd0f…2024-10-04 04:10 UTC · source 2024-10-03 excluded package package 54738-973-12 367a005e9d99…383a685ebd0f…2024-07-10 04:00 UTC · source 2024-07-09 excluded product product 557ba5c1ecfa…9c80585c8c6e…2024-07-10 04:00 UTC · source 2024-07-09 excluded package package 54738-973-12 557ba5c1ecfa…9c80585c8c6e…
Reported adverse events (FAERS/openFDA)# Adverse event summaries are temporarily unavailable. Other product information remains available.
Additional Listing Data#
Finished product Yes
Brand name base Magnesium Oxide
Listing expiration 2026-12-31 Active Ingredients# Ingredient, Strength table Ingredient Strength MAGNESIUM OXIDE 400 mg/1
Harmonized UNII identifiers# UNII identifiers page 1 of 1 · 1 matching rows.
Identifier, FDA.report destination table Identifier FDA.report destination 3A3U0GI71G Internal UNII lookup
Harmonized RxCUI identifiers# RxCUI identifiers page 1 of 1 · 1 matching rows.
Identifier, FDA.report destination table Identifier FDA.report destination 198741 Internal RxNorm lookup
Harmonized SPL set identifiers# SPL set identifiers page 1 of 1 · 1 matching rows.
DailyMed Product Concepts# DailyMed Package Descriptions# Package NDC, Product, Description table Package NDC Product Description Form Quantity Strength SPL version 54738-973-12 Magnesium Oxide 120 in 1 BOTTLE TABLET 120 13
DailyMed Dashboard NDC Coverage# NDC, Dashboard title, SPL version table NDC Dashboard title SPL version Validation Dashboard ZIP 54738-973 MAGNESIUM OXIDE TABLET [RICHMOND PHARMACEUTICALS, INC.] 13 Current NDC, Legacy NDC, 1 package rows 20241228_9119b7f0-3e8a-7be7-e053-2995a90a4634.zip
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 22 of 34 · 678 matching rows.
DailyMed RxNorm Mappings# Packages# Package NDC, 11-digit format, Description table Package NDC 11-digit format Description Units Marketing start Marketing end Sample Exclude flag Status 54738-973-12 54738097312 120 TABLET in 1 BOTTLE (54738-973-12) 120 tablet 2016-02-01 0000-00-00 No No Current