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MAGNESIA PHOS magnesium phosphate, dibasic trihydrate 30 [hp_X]/1 Tablet, 500-count — NDC 54973-3108-01 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

MAGNESIA PHOS magnesium phosphate, dibasic trihydrate 30 [hp_X]/1 Tablet, 500-count — NDC 54973-3108-1 (Billing 54973-3108-01)

by Hyland's Inc. · 500 TABLET in 1 BOTTLE, PLASTIC

This is a package of 500 tablets of MAGNESIA PHOS magnesium phosphate, dibasic trihydrate 30 [hp_X]/1 Tablet from Hyland's Inc., marketed since Jan 1960 and currently FDA-listed. It is this product's only package size.

NDC 54973-3108-01
🏷️ FDA NDC (as labeled) 54973-3108-1 billing pads the package segment with a zero
OTC On market Non-controlled ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 1, 2026 · this listing last changed Oct 1, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

NDC database record

One package, one record: these facts belong to NDC 54973-3108-1 alone.

Record
FDA NDC Directory package listing · Human OTC drug
Code segments
54973 labeler · 3108 product · 1 package
Package marketed since
Jan 1, 1960
Sample package
No — commercial package
Listing certified through
Dec 31, 2026
Barcode (UPC)
0354973310810
FDA record last changed
Oct 1, 2026

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 54973-3108-1
Product NDC 54973-3108
11-digit billing NDC 54973310801
UNII HF539G9L3Q
UPC 0354973310810
SPL Set ID d6bf8ae0-5bf9-47b8-8a5b-0f59e05968c8
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 UNAPPROVED HOMEOPATHIC
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 1960-01-01
Route ORAL
Dosage form TABLET
Substance MAGNESIUM PHOSPHATE, DIBASIC TRIHYDRATE
Why two NDCs? The FDA registers this code as 54973-3108-1 — a 5-4-1 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 package segment → 54973-3108-01. 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.

Clinical

🧪 What is this product?

This is a homeopathic tablet taken by mouth containing magnesium phosphate, dibasic trihydrate in a highly diluted form. In homeopathic practice, this ingredient is traditionally used to address muscle tension and spasms. Like all homeopathic products, this tablet is marketed based on homeopathic tradition and has not been evaluated by the FDA for effectiveness.

Supplement & herbal interactions

🌿 Drug–supplement interaction checker →
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.

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 systemPer eachPer 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.

Packaging — all sizes for this product

Package NDCDescription Marketing startMarketing endStatus
54973-3108-01 You're viewing this Main listing 500 TABLET in 1 BOTTLE, PLASTIC 1960-01-01 — Active

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Magnesia Phos 30 [hp_X]this 54973-3108-01 Hyland's 500 tablets — — 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

🏛️
1960
On the market since
Jan 1960
📍
2026
Currently FDA-listed
66 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.

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.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • UNII 5C5403N26O
    Acacia is a natural gum derived from acacia tree sap. It serves as a binder, thickener, and emulsifier to help hold ingredients together, improve texture, and stabilize the medicine.
  • UNII J2B2A4N98G
    Lactose is a natural sugar derived from milk. In medications, it serves as a filler and binder to add bulk and help hold tablet or capsule ingredients together during manufacturing.

2 inactive ingredients listed in the exact product block matched to this NDC.

The official label also statesin a base of Acacia Gum, Lactose N.F. “HPUS” indicates that the active ingredients are in the official Homeopathic Pharmacopœia of the United States.

Label-section wording can be broader than the structured product block and may mention additional formulation ingredients.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMed — ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.

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.

Manufacturer & labeler

LabelerHyland's Inc.
Labeler code54973
First marketedJan 1960
Product typeHuman Otc Drug
Portfolio69 products on file

More NDCs from Hyland's Inc. labeler code 54973

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.

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 📄 Do Not Use 📄 Ask a Doctor Before Use If 🤰 If Pregnant or Breast-Feeding 📄 Keep Out of Reach of Children 📄 Questions or Comments 📄 Package Label / Principal Display Panel
🎯 Indications and Usage 18 words ▾

INDICATIONS Relief of symptoms of muscular cramps and pains (e.g.menstrual cramps) relieved by warmth,stomach cramps,headaches with darting pains.

⏱️ Dosage and Administration 38 words ▾

DIRECTIONS Adults & Children ages 7 - 12: 4 tablets. Children ages 2 - 6: 2 tablets. Dissolve under tongue 3 times a day. Use more frequently (every 15 minutes for up to 8 doses) with acute conditions.

⚠️ Warnings 56 words ▾

Warnings Do not use if imprinted cap band is broken or missing. If symptoms persist for more than 7 days or worsen, contact a licensed health care provider. If you are pregnant or nursing, seek the advice of a licensed health care provider before using this product. Keep all medications out of the reach of children.

🧪 Active Ingredient 29 words ▾

FORMULA Magnesia Phosphorica 30X HPUS in a base of Acacia Gum, Lactose N.F. “HPUS” indicates that the active ingredients are in the official Homeopathic Pharmacopœia of the United States.

🧪 Inactive Ingredients 24 words ▾

in a base of Acacia Gum, Lactose N.F. “HPUS” indicates that the active ingredients are in the official Homeopathic Pharmacopœia of the United States.

🎯 Purpose 17 words ▾

Relief of symptoms of muscular cramps and pains (e.g.menstrual cramps) relieved by warmth,stomach cramps,headaches with darting pains.

📄 Do Not Use 11 words ▾

Do not use if imprinted cap band is broken or missing.

📄 Ask a Doctor Before Use If 16 words ▾

If symptoms persist for more than 7 days or worsen, contact a licensed health care provider.

🤰 If Pregnant or Breast-Feeding 19 words ▾

If you are pregnant or nursing, seek the advice of a licensed health care provider before using this product.

📄 Keep Out of Reach of Children 9 words ▾

Keep all medications out of the reach of children.

📄 Questions or Comments 3 words ▾

QUESTIONS? (800) 624-9659

📄 Package Label / Principal Display Panel 25 words ▾

PRINCIPAL DISPLAY PANEL - 500 Tablet Bottle Label HOMEOPATHIC NDC 54973-3108-1 Hyland's ® # 8 Mag. Phos. 30X Muscle Cramps and Pains* 500 TABLETS label

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗

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 MAGNESIA PHOS (this brand).

Top reported reactions

Coagulopathy1
Coronary Artery Disease1
Pneumonia1
Respiratory Failure1

Reporter sex

1 reports
Female · 100%

Serious outcomes

Hospitalization1
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.

About this NDC listing & data coverage

Over-the-counter (OTC) product Homeopathic listing

About homeopathic listings

MAGNESIA PHOS magnesium phosphate, dibasic trihydrate 30 [hp_X]/1 TABLET is listed under the homeopathic marketing category. An NDC listing in this category does not by itself establish FDA approval, and FDA does not evaluate homeopathic products for effectiveness. This page reports the listing data as published.

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) ✓ 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 "Unapproved Homeopathic". 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 form printed on the packaging and shown on DailyMed is the one the FDA registered. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero and the dashes are dropped. The Identity section at the top of this page lists each form of this code.
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 Hyland's Inc.. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
Hyland's Inc. 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.
← 54973-3093-01 · Hyland's 54973-3114-02 · Hyland's →
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.