PlainVitamins

Magnesium Chloride

by WP Westminster Pharmaceuticals · tablet or pill · 60 tablets

  • On the market (NIH)
  • UPC 3 69367 16702 4
  • DSLD label 264445
  • Serving 2 tablets
  • 30 servings

Magnesium Chloride by WP Westminster Pharmaceuticals lists 3 ingredients, 3 with an amount per serving of 2 tablets, such as 224 mg of calcium, 128 mg of magnesium and 374 mg of chloride. Its current label entered the NIH Dietary Supplement Label Database on December 18, 2021.

What is in Magnesium Chloride?

Each row as the label prints it, per serving of 2 tablets. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Magnesium Chloride: Supplement Facts rows against the market (DSLD label 264445, January 2026 release)
IngredientAmount% DVAmong products listing it
Calcium224 mg22%Calcium in Magnesium Chloride against 17,831 products224 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg224 mg

Higher than 71% of 17,831 products listing calcium (median 115 mg).

Magnesium128 mg32%Magnesium in Magnesium Chloride against 14,003 products128 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg128 mg

Higher than 68% of 14,003 products listing magnesium (median 86 mg).

Chloride374 mg11%Chloride in Magnesium Chloride against 1,476 products374 mg per serving; the middle half of products list 60 mg to 183.5 mg, the median 75 mg.DV 2,300 mgUL 3,600 mg374 mg

Higher than 90% of 1,476 products listing chloride (median 75 mg).

Source: NIH ODS Dietary Supplement Label Database, label 264445 (entered December 18, 2021), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Directions: As a dietary supplement, take 2 tablets daily or as directed by your physician. Tablets should be swallowed whole.
Warnings
Important: Do not use if imprinted seal under cap is broken.
Keep out of the reach of children.
Allergens and what it does not contain
Sugar and starch free
Storage
Store in dry location at 15 degrees – 25 degrees C (59 degrees – 77 degrees F). Store tablets in original container with desiccant, and close cap tightly after each use. Do not repackage.

Source: label statements in DSLD label 264445.

What else is on the label?

Other ingredients: Magnesium Chloride Hexahydrate, Dicalcium Phosphate, Calcium Carbonate, Microcrystalline Cellulose, Stearic Acid, Croscarmellose Sodium, Magnesium Stearate, PVP, Talc, Silica, Methacrylic Acid Copolymer, Propylene Glycol, Titanium Dioxide, Polysorbate, Sodium Lauryl Sulfate.

How many labels does Magnesium Chloride have?

One label is on file, entered on December 18, 2021.

  1. Label 264445 (current) Entered December 18, 2021 · on the market · 60 tablets · UPC 3 69367 16702 4

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Westminster Pharmaceuticals, LLC (distributor), Olive Branch, MS. All WP Westminster Pharmaceuticals products.

Where next?