PlainVitamins

Sinuplex

by Metagenics · tablet or pill · 120 tablets

  • On the market (NIH)
  • UPC 7 55571 91057 8
  • DSLD label 295860
  • Serving 1 tablet
  • 120 servings

Sinuplex by Metagenics lists 5 ingredients, 5 with an amount per serving of 1 tablet, such as 150 mg of vitamin C, 200 mg of quercetin, 100 mg of stinging nettle root extract and 50 mg of bromelain. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2023.

What is in Sinuplex?

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).

Sinuplex: Supplement Facts rows against the market (DSLD label 295860, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid150 mg167%Vitamin C in Sinuplex against 18,583 products150 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg150 mg

Higher than 58% of 18,583 products listing vitamin C (median 100 mg).

Quercetin200 mgQuercetin in Sinuplex against 1,548 products200 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.200 mg

Higher than 66% of 1,548 products listing quercetin (median 100 mg).

Stinging Nettle Root Extract7:1 extract100 mgStinging Nettle in Sinuplex against 710 products100 mg per serving; the middle half of products list 50 mg to 300 mg, the median 120 mg.100 mg

51% of 710 products listing stinging nettle give more (median 120 mg).

Bromelain2,400 GDU/g50 mgBromelain in Sinuplex against 1,337 products50 mg per serving; the middle half of products list 25 mg to 200 mg, the median 50 mg.50 mg

50% of 1,337 products listing bromelain give more (median 50 mg).

N-Acetylcysteine25 mgN-Acetyl Cysteine in Sinuplex against 1,259 products25 mg per serving; the middle half of products list 55 mg to 500 mg, the median 150 mg.25 mg

89% of 1,259 products listing N-acetyl cysteine give more (median 150 mg).

Source: NIH ODS Dietary Supplement Label Database, label 295860 (entered August 23, 2023), 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?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • 89% of the 1,259 products that print an amount of N-acetyl cysteine list more than its 25 mg of N-acetylcysteine (filed by NIH under N-acetyl cysteine) (median 150 mg).

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: Take 1 tablet daily or as directed by your healthcare practitioner.
Warnings
Caution: if pregnant, nursing, or taking medications, consult your healthcare practitioner before use.
Warning: do not use if allergic to pineapple or pineapple products.
Tamper evident: do not use if safety seal is missing or broken.
Practitioner exclusive
Allergens and what it does not contain
This product is non-GMO and gluten-free.
Storage
Storage: keep tightly closed in a cool, dry place.

Source: label statements in DSLD label 295860.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Croscarmellose Sodium, Magnesium Stearate, Silica, Hypromellose, Medium Chain Triglycerides, Hydroxypropyl Cellulose.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GFCO.org (Gluten-Free Certification Organization). Listed with: Certified gluten-free (GFCO) (a seal is the label's claim; the certifier's own list confirms it).

How many labels does Sinuplex have?

5 labels are on file under this name since November 25, 2013: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 295860 (current) Entered August 23, 2023 · on the market · 120 tablets · UPC 7 55571 91057 8
  2. Label 267844 Entered June 16, 2022 · off the market September 7, 2022 · 120 tablets
  3. Label 216265 Entered March 24, 2020 · off the market September 7, 2022 · 120 tablets · UPC 7 55571 91057 8
  4. Label 209586 Entered December 22, 2019 · off the market December 27, 2019 · 120 tablets
  5. Label 27901 Entered November 25, 2013 · off the market July 1, 2019 · 120 tablets · UPC 7 55571 91057 8

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

Who makes it?

The label names Metagenics (manufacturer), Gig Harbor, WA. All Metagenics products.

Where next?