Magnesium Oxide 400 mg Tablet, 90-count
by Aphena Pharma Solutions - Tennessee, LLC · 90 TABLET in 1 BOTTLE (71610-172-60)
NDC 71610-0172-60
🏷️ FDA NDC (as labeled)
71610-172-60
billing pads the product segment with a zero
OTC
On market
Non-controlled
🗂️ Data synced Sep 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →
🆔 Identity & classification
FDA NDC (as labeled)
71610-172-60
Product NDC
71610-172
11-digit billing NDC
71610017260
NCPDP billing unit
EA — each (per item)
RxCUI
198741
UNII
3A3U0GI71G
Application #
part331
SPL Set ID
edabc9e4-60ad-407f-97c8-dfec5ee7eeb1
Established class (EPC)
Calculi Dissolution Agent; Osmotic Activity
Mechanism of action
Magnesium Ion Exchange Activity
Physiologic effect
Increased Large Intestinal Motility; Inhibition Large Intestine Fluid/Electrolyte Absorption; Inhibition Small Intestine Fluid/Electrolyte Absorption
DEA schedule
Non-controlled
Marketing category
OTC MONOGRAPH FINAL
Marketing status
On market
FDA listing status
Listed (active directory)
Marketing start
2016-02-01
Route
ORAL
Dosage form
TABLET
Substance
MAGNESIUM OXIDE
GPI-14
48400020000310
GPI class
Magnesium Oxide
GCN Seq No
078687
GCN
45064
HICL code
000609
Ingredient (HICL)
Magnesium Oxide
HIC1 code
D
Therapeutic class — broad (HIC1)
Biliary System/Gastro-Intestinal System
HIC2 code
D4
Therapeutic class — intermediate (HIC2)
Drugs Acting Principally On The Alimentary Tract
HIC3 code
D4B
Therapeutic class — specific (HIC3)
Antacids
AHFS code
56:04.00.00
AHFS class
Antacids And Adsorbents
FDB label name
MAGNESIUM OXIDE 400 MG TABLET
FDB brand name
Magnesium Oxide
Legend status
O — Over-the-counter (OTC) drug or device
Why two NDCs?
The FDA registers this code as 71610-172-60 — a 5-3-2 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the product segment → 71610-0172-60. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.
🏷️ RxNorm drug class
This medicine belongs to the Magnesium compounds class.
Drug family (ATC)
Magnesium compounds, Osmotically acting laxatives, Magnesium
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.
🏭 Manufacturer & labeler
LabelerAphena Pharma Solutions - Tennessee, LLC
FDA applicationpart331 (OTC MONOGRAPH FINAL)
Labeler code71610
First marketedFeb 2016
Product typeHuman Otc Drug
Portfolio800 products on file
The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.
🩺 Clinical
Label name MAGNESIUM OXIDE 400 MG TABLET Ingredient Magnesium Oxide
📗 Our plain-language guide HelloPharmacist
- It depends on the product you have. Some magnesium oxide tablets work as an antacid — they help relieve acid indigestion and upset stomach. Other products are sold as a dietary sup...
- What is magnesium oxide actually used for?
- When used as an antacid, you shouldn't use the maximum dose for more than two weeks in a row unless your doctor is guiding you. The magnesium supplement form is meant for daily use...
- Can I take it every day, or is it just for when I have an upset stomach?
Patient education
Supplement & herbal interactions
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.
💬 Questions about Magnesium Oxide?
Ask a pharmacist →
Ask a licensed pharmacist directly — free, answered by our team.
🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
Loading inactive ingredients from the official FDA label in the background. No external source is being called by this page request.
Where does this data come from?
Source: official FDA Structured Product Labeling (SPL) via DailyMed and the openFDA label index. Structured
IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.
💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per each | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
ℹ️
No price is published for this exact package yet. CMS surveys NADAC per package size, so a different pack of the same drug often has one.
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Magnesium Oxide 400 mg 00603-0209-22 | Endo | 120 tablets | $0.035 | — | Availability likely | — |
| Magnesium Oxide 400 mg 24689-0132-01 | APNAR | 120 tablets | $0.035 | — | Availability likely | — |
| Magnesium Oxide 400 mg 58657-0120-12 | Method | 120 tablets | $0.035 | — | Availability likely | — |
| Magnesium Oxide 400 mg 69367-0298-20 | Westminster | 120 tablets | $0.035 | — | Availability likely | — |
| Magnesium Oxide 400 mg 81033-0027-01 | Kesin | 1000 tablets | $0.035 | — | Availability likely | — |
| Magnesium Oxide 400 mg 10135-0786-62 | Marlex | 120 tablets | — | — | FDA listed | — |
| Magnesium Oxide 400 mg 50090-7432-00 | A-S | 120 tablets | — | — | FDA listed | — |
| Magnesium Oxide 400 mg 54738-0973-12 | Richmond | 120 tablets | — | — | Discontinued | — |
| Magnesium Oxide 400 mg 63629-1126-01 | Bryant | 120 tablets | — | — | Discontinued | — |
| Magnesium Oxide 400 mg 63629-9420-01 | Bryant | 120 tablets | — | — | FDA listed | — |
| Magnesium Oxide 400mg 400 mg 69168-0174-06 | Allegiant | 120 tablets | — | — | FDA listed | — |
| Magnesium Oxide 400 mg 71335-1960-01 | Bryant | 60 tablets | — | — | FDA listed | — |
| Magnesium Oxide 400 mgthis 71610-0172-60 | Aphena | 90 tablets | — | — | FDA listed | — |
| Magnesium Oxide 400 mg 71610-0182-60 | Aphena | 90 tablets | — | — | FDA listed | — |
| Magnesium Oxide 400 mg 72162-1648-04 | Bryant | 120 tablets | — | — | FDA listed | — |
| Magnesium Oxide 241.3 mg/1000mg 84447-0001-12 | Belleview | 120 mg | — | — | FDA listed | — |
About this product: other versions of the same ingredient, strength and form are listed above, least expensive first, with FDA equivalence ratings where available.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.
⏳ Availability & generic status
🏛️
2016
On the market since
Feb 2016
📍
2026
Currently FDA-listed
10 years listed
🔒
·
No generic listed yet
brand only
ℹ️No FDA-approved generic found
We did not find an FDA-approved generic match for this exact strength, form and route.
Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.
🔬 Reported adverse events (FAERS)
Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for Magnesium Oxide — the ingredient across all brands.
Top reported reactions
Age at onset
Reporter sex
Male · 43%
Female · 57%
Unknown · 0%
Serious outcomes
Reports over time (by year) — tap or hover for the count & year
Most recent year is provisional (FAERS lags ~3 months).
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 71610-0172-60 You're viewing this | 90 TABLET in 1 BOTTLE (71610-172-60) | 2018-10-15 | Active |
🧭 About this NDC listing & data coverage
Over-the-counter (OTC) product
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | ✓ Available |
| Inactive ingredients (structured) | — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is available. |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope. |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold. |
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.
Questions about this listing
Is this NDC FDA-approved?
An NDC listing does not by itself establish FDA approval — the NDC Directory records that a product is listed with FDA, not that it was reviewed and approved. This listing's marketing category is "Otc Monograph Final". Products approved under an application carry an NDA, ANDA, or BLA number.
Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The FDA registers it as 71610-172-60, which is what is printed on the packaging and shown on DailyMed. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero: 71610-0172-60, written without dashes as 71610017260. The Identity section at the top of this page lists every form of this code.
What do the three segments of this NDC mean?
In 71610-0172-60, the first segment (71610) is the labeler code FDA assigned to Aphena Pharma Solutions - Tennessee, LLC; the middle segment (0172) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (60) identifies this exact package size and type. Together they name one specific package of one specific product.
Is this package still being marketed?
Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by Aphena Pharma Solutions - Tennessee, LLC. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
Aphena Pharma Solutions - Tennessee, LLC is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as an over-the-counter product, so it does not require a prescription. Follow the package directions, and ask your pharmacist if you are unsure whether it is right for you.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.
📄 FDA label — Drug Facts FDA SPL
The complete FDA label for this product — the official Drug Facts labeling, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage
⏱️ Dosage and Administration
⚠️ Warnings
🧪 Active Ingredient
🧪 Inactive Ingredients
🎯 Purpose
🎯 Indications and Usage ▾
USES Relieves: ■ acid indigestion ■ upset stomach
⏱️ Dosage and Administration ▾
DIRECTIONS 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
⚠️ Warnings ▾
WARNINGS Ask a doctor if you have: kidney disease Ask a doctor or pharmacist before use if you are: taking a prescription drug. Antacids may interact with certain prescription drugs. Do not take 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 advise and supervision of a physician.
May have a laxative effect. If pregnant or breast-feeding, ask a health professional before use. Keep Out of Reach of Children.
🧪 Active Ingredient ▾
ACTIVE INGREDIENT (In each tablet) Magnesium Oxide 400mg (241.2mg elemental magnesium) Purpose Antacid
🧪 Inactive Ingredients ▾
INACTIVE INGREDIENTS croscarmellose sodium, microcrystalline cellulose, magnesium stearate
🎯 Purpose ▾
Purpose Antacid
No label section mentions that — try another word, or open the full label on DailyMed below.
Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA.
Prefer the government’s original formatting? View this label on DailyMed ↗
For educational and professional reference only — not medical advice. Pricing reflects published
NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.