Label arithmetic · NIH DSLD 263313
Brandywine Pharmaceuticals Magnesium L-Lactate Dihydrate: 84 mg of magnesium per serving, 1–2 servings a day
84 mg of magnesium per serving. Lactate is 10.2–12.0% magnesium; no US price matched (Nov 2). Inside: label lines, ingredients.
Brandywine Pharmaceuticals Magnesium L-Lactate Dihydrate declares 84 mg of elemental magnesium per serving as lactate, which means 699–824 mg of magnesium lactate compound in one 1–2 caplet(s), compared with 1,100 mg in the largest standard capsule; capsule verdicts do not apply to this other (e.g. tea bag). No US retail price matched as of 2026-11-02; 0 of the 3 lactate labels in this registry have a matched price. NIH DSLD 263313, label dated 2021-12-18.
computed from the filed label
Chart data
| Displayed chart text |
|---|
| gluconate |
| 1,433 |
| orotate |
| 1,155 |
| L-threonate |
| 1,018 |
| taurate |
| 942 |
| lactate |
| 699 |
| glycerophosphate |
| 672 |
| glycinate |
| 596 |
| malate |
| 541 |
| aspartate |
| 537 |
| citrate |
| 520 |
| sulfate |
| 416 |
| chloride |
| 329 |
| carbonate |
| 291 |
| hydroxide |
| 202 |
| oxide |
| 139 |
Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-10-19 · chemistry 2026-10-17
Mass: 350–412 mg per serving · Price: none matched · % DV: 20% vs 20%
Elemental: The magnesium itself; the rest of the compound weight is the partner molecule.
Compound: The whole salt, such as magnesium glycinate, that must physically fit in the capsule.
Size 000: The largest standard capsule, about 1,100 mg of powder at 0.8 g/mL, the top of the usual 0.6–0.8 range; size 00 holds about 730 mg and size 0 about 545 mg.
Recompute with your price
Enter the price you paid; the declared amount and servings of this label are prefilled, so the result is the cost per 100 mg of elemental magnesium for your bottle.
Same-salt comparison appears here.
How much lactate compound is in one serving?
Brandywine Pharmaceuticals Magnesium L-Lactate Dihydrate carries 699–824 mg of magnesium lactate per serving for 84 mg of elemental magnesium, against 1,100 mg in the largest standard capsule; capsule capacities do not apply to this other (e.g. tea bag).
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 84 mg |
| Units per serving | 1–2 |
| Magnesium lactate per serving | 699–824 mg |
| Magnesium lactate per serving | 350–412 mg |
| Capsule capacity 0 · 00 · 000 | 545 · 730 · 1,100 mg |
| Verdict | Capsule sizes do not apply |
The filed salt can have more than one hydration state (anhydrous 12.01% or dihydrate 10.19% (238.48 g/mol)), so the compound mass is a range.
Source · NIH DSLD 263313 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Brandywine Pharmaceuticals Magnesium L-Lactate Dihydrate files 1 magnesium line in NIH DSLD 263313; the selected primary line declares 84 mg of elemental magnesium per serving, against 0 other rows excluded from the primary amount. A salt named under another nutrient does not turn that nutrient's quantity into elemental magnesium.
measured| Filed amount | Salt or note as filed | Role |
|---|---|---|
| 84 mg | Elemental | Primary serving |
Source · NIH DSLD 263313 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Does this label's lactate claim hold up, or could the magnesium come from another source?
The label names one magnesium form, lactate, resolved from the full NIH DSLD record text; capsule capacities do not apply to this form, compared with oxide, the salt richest in magnesium at 60.3%.
computed with assumption| Form named on the label | Elemental fraction | Source |
|---|---|---|
| Magnesium lactate | 10.2–12.0% | full NIH DSLD record text |
Source · NIH DSLD 263313 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Is this a good price for the elemental magnesium I'm actually getting?
No US retail price is matched to this label as of 2026-11-02; 0 of 3 lactate labels have one, against a median of none per 100 mg among 0 ranked lactate offers.
computed| Rank | Label | Per 100 mg | Observed |
|---|
Source · Amazon via licensed data provider; NIH DSLD · unique ASIN × date; prices observed 2026-10-26 to 2026-11-02 · release 2026-08-10-f441aa9f · CSV · method
How many days will this bottle last at the label's own serving, and what does a day cost?
At the label's own serving, Brandywine Pharmaceuticals Magnesium L-Lactate Dihydrate lasts 100 days: 100 servings against 1 serving a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 100 Caplet(s) |
| Serving size as filed | 1–2 Caplet(s) |
| Servings per container | 100 |
| Servings per day in the directions | 1 |
| Days per bottle | 100 days |
| $ per 30 days at one label serving a day | No ranked price as of 2026-11-02 |
| $ per 30 days at 420 mg Daily Value | No ranked price as of 2026-11-02 |
Source · NIH DSLD 263313 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "20% Daily Value" mean here, and does it recompute?
The label declares 20% Daily Value; 84 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 20%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 20% | 420 mg | 20% |
Source · NIH DSLD 263313; 21 CFR 101.9 · label 2021-12-18 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain magnesium stearate, what shell is it, and who is it filed for?
Brandywine Pharmaceuticals Magnesium L-Lactate Dihydrate files 5 other ingredients, including magnesium stearate (reference fraction 4.1% magnesium; no quantity filed, so it is not added to the total) and a vegetarian shell, against 3 of 3 lactate labels that list magnesium stearate.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Microcrystalline Cellulose |
| 2 | Calcium Carbonate |
| 3 | Carnauba wax |
| 4 | Silicon Dioxide |
| 5 | Magnesium Stearate |
| Shell | vegetarian |
| Target group | Adult (18 - 50 Years) |
Source · NIH DSLD 263313 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What has research measured about lactate, and about side effects?
2 studies in the PubMed-checked registry measured outcomes involving lactate; none reports a gastrointestinal outcome as of 2026-11-02. They measured the salt, not this label.
measured| Year | Study | PubMed |
|---|---|---|
| 2005 | Study of magnesium bioavailability from ten organic and inorganic Mg salts in Mg-depleted rats using a stable isotope approach | 16548135 |
| 2001 | Bioavailability of US commercial magnesium preparations | 11794633 |
Source · PubMed-checked study registry · registry checked 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Has this brand had FDA recalls or adverse event reports?
Brandywine Pharmaceuticals has 0 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Brandywine Pharmaceuticals has no FDA CAERS adverse event report on record at brand level as of 2026-10-19 (143 of 273 brands in this registry have at least one CAERS report).
measured| Recall | Date | Reason | Status |
|---|---|---|---|
| No recall record as of 2026-10-19 |
Source · openFDA enforcement and CAERS · queried 2026-10-19 · release 2026-08-10-f441aa9f · CSV · method
Is this the same formula as another brand's, and how do their prices differ?
No other brand files the same formulation (ingredients, shell, units and rounded amount) as of 2026-11-02.
computed| Label | Brand | Price per 100 mg |
|---|---|---|
| No cross-brand match as of 2026-11-02 |
Source · NIH DSLD 263313 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which labels are closest to this one, with the same salt and dose?
No other label files the same resolved salt within ±10% of this label's dose per unit as of 2026-11-02.
computed| Label | Elemental per unit | Price | Verdict |
|---|---|---|---|
| No neighbour as of 2026-11-02 |
Source · NIH DSLD 263313 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Where does this record come from, what is missing, and how do I cite or correct it?
Every value on this page traces to NIH DSLD 263313 (label 2021-12-18, snapshot 2026-08-10) and the chemistry model of 2026-09-13. 1 gap remain: No US retail price matched as of 2026-11-02 (barcode 0 71321 80010 5). The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 263313 |
| Scanned label (PDF) | Label 263313 scan |
| Label date | 2021-12-18 |
| Date entered into DSLD | 2021-12-18 |
| Barcode (UPC) as filed | 0 71321 80010 5 |
| Product Manufactured for and Distributed By | Brandywine Pharmaceuticals, LLC, West Chester, PA |
| Claim category as filed | Nutrient |
| Claim category as filed | All Other |
18 additional rows
| Field | As filed |
|---|---|
| Claim category as filed | Structure/Function |
| FDA Disclaimer Statement | These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. |
| Storage | For optimal storage conditions, store in a cool, dry place (59 degrees - 77 degrees Fahrenheit/ 15 degrees - 25 degrees Celsius) (35-65% relative humidity) |
| Precautions re: Children | Keep out of the reach of children. |
| Precautions re: All Other | In case of accidental overdose, seek professional assistance or contact a poison control center immediately. |
| Brand IP Statement(s) re: (c), (TM), (SM) | This product is not manufactured or distributed by Niche Pharmaceuticals, Inc., owner to the registered trademark Mag-Tab SR. |
| General Statements: All Other Content | 71321-800-10 |
| Formulation re: Does NOT Contain | Dye Free |
| General Statements: All Other Content | Compare to the Active Ingredient in Mag-Tab SR |
| Formula re: Contains | 12 hour sustained release magnesium supplement |
| Formulation re: Other | Supports a healthy heart |
| Precautions re: All Other | Tamper evident: Do not use if foil seal is broken or missing. |
| FDA Statement of Identity | Dietary Supplement |
| Formula re: Contains | Each caplet supplies: 84 mg (7 mEq) of magnesium |
| Suggested/Recommended/Usage/Directions | Directions: As a dietary supplement, take 1 or 2 caplets every 12 hours or as directed by a physician. |
| Precautions re: Pregnant or Nursing or Prescription Medications | Caution: As with any dietary supplement, consult your healthcare practitioner before using this product, especially if you are pregnant, nursing, anticipate surgery, take medication on a regular basis or are otherwise under medical supervision. |
| Physical state | Other (e.g. tea bag) |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 263313 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
6 brand pages linked below contain magnesium labels from the NIH DSLD registry snapshot dated 2026-08-10.