Quercezyme-Plus
by Enzymatic Therapy · tablet or pill · 50 tablets
- Off the market since August 2023 (NIH)
- UPC 7 63948 03575 5
- DSLD label 39112
- Serving 1 to 2 tablets; amounts per 1 tablet
Quercezyme-Plus by Enzymatic Therapy lists 6 ingredients, 6 with an amount per serving of 1 tablet, such as 100 mg of vitamin C, 25 mg of magnesium, 125 mg of quercetin and 100 mg of mixed bioflavonoids, beside 1 Nutrition Facts row (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on November 25, 2014.
What is in Quercezyme-Plus?
Each row as the label prints it, per serving of 1 tablet. 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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Total Carbohydrates | less than 1 g | 1% | |
| Vitamin Cas Ascorbic Acid | 100 mg | 167% | 50% of 18,583 products listing vitamin C give more (median 100 mg). |
| Magnesiumas Magnesium CarbonateMagnesium (Form: as Magnesium Carbonate) | 25 mg | 6% | 77% of 14,003 products listing magnesium give more (median 86 mg). |
| Quercetin | 125 mg | Higher than 61% of 1,548 products listing quercetin (median 100 mg). | |
| Mixed Bioflavonoidsas CitrusMixed Bioflavonoids (Form: from Citrus PlantPart: fruits) Note: 50% | 100 mg | Higher than 62% of 2,343 products listing flavonoid (median 50 mg). | |
| L-Cysteine | 75 mg | 52% of 516 products listing cysteine give more (median 85 mg). | |
| BromelainBromelain Note: 2,400 G.D.U./g | 62 mg | Higher than 52% of 1,337 products listing bromelain (median 50 mg). |
Source: NIH ODS Dietary Supplement Label Database, label 39112 (entered November 25, 2014), version 9.4.0. See the label on DSLD. 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?
The products whose ingredient lists overlap most with Quercezyme-Plus's, rare ingredients counting for more.
- Quercetin ComplexVSN Vital Strength Nutrition · off the market 5 shared, 69% alike
- Quercetin ComplexVitaCeutical Labs 5 shared, 69% alike
- Quercetin ComplexVitamer Laboratories 5 shared, 69% alike
- Quercetin ComplexNatural Nutra 5 shared, 69% alike
- Quercetin ComplexWoodstock Vitamins 5 shared, 69% alike
- Aller-CQVQ Verified Quality 4 shared, 60% alike
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
- Recommendations: One to two tablets before meals.
- Warnings
- If pregnant, nursing, or taking prescription drugs, consult your healthcare practitioner prior to use.
- Allergens and what it does not contain
- Contains no sugar, salt, yeast, wheat, gluten, corn, soy, dairy products, artificial coloring, artificial flavoring, or preservatives.
Source: label statements in DSLD label 39112.
What else is on the label?
Other ingredients: Cellulose, Stearic Acid, Modified Cellulose Gum, Silicon Dioxide, Modified Cellulose, Magnesium Stearate, Glycerin, Carnauba Wax.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): LABORATORY TESTED PURITY. SAFETY & PERFORMANCE; Enzymatic Therapy -What Better Feels Like-(R).
How many labels does Quercezyme-Plus have?
One label is on file, entered on November 25, 2014.
- Label 39112 (current) Entered November 25, 2014 · off the market August 11, 2023 · 50 tablets · UPC 7 63948 03575 5
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Enzymatic Therapy, LLC (manufacturer), Green Bay, WI. All Enzymatic Therapy products.