PlainVitamins

Pre-Op

by Surgery Vitamin · tablet or pill · 60 tablets

  • Off the market since October 2023 (NIH)
  • UPC 8 96410 00201 3
  • DSLD label 4936
  • Serving 4 tablets
  • 15 servings

Pre-Op by Surgery Vitamin lists 17 ingredients, 17 with an amount per serving of 4 tablets, such as 5,000 IU of vitamin A, 1,000 mg of vitamin C, 400 IU (10 mcg) of vitamin D and 30 mcg of vitamin K. Its current label entered the NIH Dietary Supplement Label Database on January 25, 2012.

What is in Pre-Op?

Each row as the label prints it, per serving of 4 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).

Pre-Op: Supplement Facts rows against the market (DSLD label 4936, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Aas Vitamin A PalmitateVitamin A (Form: as Vitamin A Palmitate)5,000 IU100%Vitamin A in Pre-Op against 5,772 products5,000 IU per serving; the middle half of products list 2,000 IU to 5,000 IU, the median 4,000 IU.5,000 IU

Higher than 55% of 5,772 products listing vitamin A (median 4,000 IU).

Vitamin Cas Ascorbic Acid1,000 mg1,670%Vitamin C in Pre-Op against 18,583 products1,000 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg1,000 mg

Higher than 91% of 18,583 products listing vitamin C (median 100 mg).

Vitamin Das CholecalciferolVitamin D (Form: as Cholecalciferol)400 IU (10 mcg)100%Vitamin D in Pre-Op against 14,175 products10 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg10 mcg

57% of 14,175 products listing vitamin D give more (median 15 mcg).

Vitamin Kas Phytonadione30 mcg37%Vitamin K in Pre-Op against 4,607 products30 mcg per serving; the middle half of products list 35 mcg to 100 mcg, the median 80 mcg.DV 120 mcg30 mcg

76% of 4,607 products listing vitamin K give more (median 80 mcg).

Thiamineas Thiamine HydrochlorideThiamin (Form: as Thiamine HCl)12.5 mg830%Thiamin in Pre-Op against 9,830 products12.5 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg12.5 mg

Higher than 65% of 9,830 products listing thiamin (median 5 mg).

Riboflavin7.5 mg440%Riboflavin in Pre-Op against 9,824 products7.5 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg7.5 mg

Higher than 59% of 9,824 products listing riboflavin (median 4 mg).

Niacinas NiacinamideNiacin (Form: as Niacinamide)20 mg100%Niacin in Pre-Op against 12,413 products20 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg20 mg

46% of 12,413 products listing niacin give more (median 20 mg).

Vitamin B6as Pyridoxine HydrochlorideVitamin B-6 (Form: as Pyridoxine HCl)2 mg100%Vitamin B6 in Pre-Op against 15,277 products2 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg2 mg

69% of 15,277 products listing vitamin B6 give more (median 6 mg).

Folic Acidas FolateFolic Acid (Form: as folate, as Folate)400 mcg100%Folate in Pre-Op against 7,022 products400 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.400 mcg

24% of 7,022 products listing folate give more (median 400 mcg).

Vitamin B126 mcg100%Vitamin B12 in Pre-Op against 14,425 products6 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg6 mcg

74% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Pantothenic Acidas D-Calcium PantothenatePanthotenic Acid (Form: as D-Calcium Pantothenate)50 mg500%Pantothenic Acid (Vitamin B5) in Pre-Op against 10,060 products50 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg50 mg

Higher than 72% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Calciumas Calcium CarbonateCalcium (Form: as Calcium Carbonate)120 mg12%Calcium in Pre-Op against 17,831 products120 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg120 mg

Higher than 51% of 17,831 products listing calcium (median 115 mg).

Magnesiumas Magnesium OxideMagnesium (Form: as Magnesium Oxide)500 mg120%Magnesium in Pre-Op against 14,003 products500 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg500 mg

Higher than 96% of 14,003 products listing magnesium (median 86 mg). 1.4 times the adult UL a day.

Zincas Zinc GluconateZinc (Form: as Zinc Gluconate)50 mg330%Zinc in Pre-Op against 13,186 products50 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg50 mg

Higher than 97% of 13,186 products listing zinc (median 11 mg). 1.3 times the adult UL a day.

Seleniumas Selenium Amino Acid ChelateSelenium (Form: as Selenium Amino Acid Chelate)100 mcg140%Selenium in Pre-Op against 7,658 products100 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg100 mcg

Higher than 65% of 7,658 products listing selenium (median 55 mcg).

Copperas Copper Amino Acid ChelateCopper (Form: as copper amino acid chelate Note: U.S. Patent Number 4,599,152 Albion Laboratories)2 mg100%Copper in Pre-Op against 6,468 products2 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg2 mg

Higher than 66% of 6,468 products listing copper (median 1 mg).

Manganeseas Manganese Amino Acid Chelate2 mg100%Manganese in Pre-Op against 7,016 products2 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg2 mg

38% of 7,016 products listing manganese give more (median 2 mg).

Source: NIH ODS Dietary Supplement Label Database, label 4936 (entered January 25, 2012), 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:

  • Its 1,000 mg of vitamin C is higher than 91% of the 18,583 vitamin C products that print an amount; 445 list more.
  • At 1 serving a day, the most its directions give, the label lists 500 mg of magnesium, 1.4 times the adult Tolerable Upper Intake Level.
  • At 1 serving a day, the most its directions give, the label lists 50 mg of zinc, 1.3 times the adult Tolerable Upper Intake Level.

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 Pre-Op'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
SUGGESTED USE: Take four (4) tablets daily for 14 days before your procedure, or as recommended by your health care professional.
Warnings
KEEP OUT OF REACH OF CHILDREN.
Do not use if pregnant or nursing.
Contains: Soy.
Consult a helth care professional prior to consumption if you have any pre-existing medical conditions or are taking any prescription medication.
WARNING: Not intended for persons under the age of 18.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 4936.

What else is on the label?

Other ingredients: Stearic Acid, Dicalcium Phosphate, Microcrystalline Cellulose, Magnesium Stearate, Croscarmellose Sodium, Silicon Dioxide, Pharmaceutical Glaze.

How many labels does Pre-Op have?

One label is on file, entered on January 25, 2012.

  1. Label 4936 (current) Entered January 25, 2012 · off the market October 13, 2023 · 60 tablets · UPC 8 96410 00201 3

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

Who makes it?

The label names Surgery Vitamin, LLC (distributor), New York, NY. All Surgery Vitamin products.

Where next?