PlainVitamins

Retenzyme Forte

by Biotics Research Corporation · tablet or pill · 180 tablets

  • Off the market since January 2018 (NIH)
  • DSLD label 22553
  • Serving 1 tablet

Retenzyme Forte by Biotics Research Corporation lists 4 ingredients, 4 with an amount per serving of 1 tablet, such as 4 mg of neonatal thymus, 100 mg of pea concentrate, 100 mg of lentil concentrate and 2 mg of papain concentrate. Its current label entered the NIH Dietary Supplement Label Database on July 25, 2013.

What is in Retenzyme Forte?

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).

Retenzyme Forte: Supplement Facts rows against the market (DSLD label 22553, January 2026 release)
IngredientAmount% DVAmong products listing it
Pancreatin 4Xas Porcine8 mg
Neonatal Thymusas Bovine4 mgThymus in Retenzyme Forte against 122 products4 mg per serving; the middle half of products list 25 mg to 198.75 mg, the median 50.5 mg.4 mg

94% of 122 products listing thymus give more (median 50.5 mg). Per day at the most servings: 12 mg.

Pea Concentrate100 mgPea in Retenzyme Forte against 31 products100 mg per serving; the middle half of products list 100 mg to 235.5 mg, the median 100 mg.100 mg

42% of 31 products listing pea give more (median 100 mg). Per day at the most servings: 300 mg.

Lentil Concentrate100 mg
Papain Concentrate2 mgPapain in Retenzyme Forte against 607 products2 mg per serving; the middle half of products list 20 mg to 75 mg, the median 40 mg.2 mg

94% of 607 products listing papain give more (median 40 mg). Per day at the most servings: 6 mg.

Source: NIH ODS Dietary Supplement Label Database, label 22553 (entered July 25, 2013), 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?

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:

  • 94% of the 122 products that print an amount of thymus list more than its 4 mg of neonatal thymus (filed by NIH under thymus) (median 50.5 mg).
  • 94% of the 607 products that print an amount of papain list more than its 2 mg of papain (median 40 mg).

The NIH database records 3 servings 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 Retenzyme Forte's, rare ingredients counting for more.

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
RECOMMENDATION: One (1) coated tablet three (3) times each day as a dietary supplement or as otherwise directed by a healthcare professional.
Warnings
KEEP OUT OF REACH OF CHILDREN
Storage
Store in a cool, dry area.

Source: label statements in DSLD label 22553.

What else is on the label?

Other ingredients: Cellulose, Stearic Acid, Food Glaze.

How many labels does Retenzyme Forte have?

One label is on file, entered on July 25, 2013.

  1. Label 22553 (current) Entered July 25, 2013 · off the market January 26, 2018 · 180 tablets

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

Who makes it?

The label names BIOTICS RESEARCH CORP. (manufacturer), Rosenberg, Texas, 77471. All Biotics Research Corporation products.

Where next?