Thompson Antacid Tablet, Chewable
NDC Package 73408-921-33

View Billable Units, 11-Digit Conversion Format, and RxNorm mappings
Table of Contents
    1. Package Information
    2. Frequently Asked Questions

Package Information

Thompson Antacid (calcium carbonate) tablets is a medication used to treat symptoms caused by too much stomach acid such as heartburn, upset stomach, or indigestion. This formulation utilizes a tablet, chewable delivery system. Marketed by Thompson, this product is identified by NDC 73408-921 and is authorized under FDA application M001.

Identification & Billing

NDC Package Code
73408-921-33
Package Description
50 PACKET in 1 BOX / 2 TABLET, CHEWABLE in 1 PACKET
Product Code
73408-921
11-Digit Billing Format
73408092133
RxNorm Crosswalk
  • RxCUI: 313884 - calcium carbonate 420 MG (Ca 168 MG) Chewable Tablet
  • RxCUI: 313884 - calcium carbonate 420 MG Chewable Tablet
  • RxCUI: 313884 - calcium carbonate 420 MG (calcium 168 MG) Chewable Tablet

Clinical Specifications

Proprietary Name
Thompson Antacid
Non-Proprietary Name
Calcium Carbonate
Substance Name
Calcium Carbonate
Dosage Form
Tablet, Chewable - A solid dosage form containing medicinal substances with or without suitable diluents that is intended to be chewed, producing a pleasant tasting residue in the oral cavity that is easily swallowed and does not leave a bitter or unpleasant after-taste.
Administration Route
Oral - Administration to or by way of the mouth.
Active Ingredient(s)
CALCIUM CARBONATE 420 mg/1
Pharmacologic Class
Usage Information
This medication is used to treat symptoms caused by too much stomach acid such as heartburn, upset stomach, or indigestion. It is an antacid that works by lowering the amount of acid in the stomach. Check the ingredients on the label even if you have used the product before. The manufacturer may have changed the ingredients. Also, products with similar names may contain different ingredients meant for different purposes. Taking the wrong product could harm you.

Regulatory & Marketing

Labeler Name
Thompson
Product Type
Human Otc Drug
FDA Application #
M001
Marketing Category
OTC MONOGRAPH DRUG -
Start Marketing Date
05-02-2022
Listing Expiration
12-31-2026
Exclude Flag
N
Sample Package
No

Hierarchy Structure

Code Lineage

The NDC Directory contains ONLY information on final marketed drugs submitted to FDA electronically by labelers. A labeler might be a manufacturer, re-packager or re-labeler. The product information included in the NDC directory does not indicate that FDA has verified the information provided by the product labeler. Assigned NDC numbers are not in any way an indication of FDA approval of the product.

* Please review the full disclaimer at the bottom of this page.

Frequently Asked Questions

What is the distribution configuration for this product package?

The code 73408-921-33 identifies a specific commercial package of 50 packet in 1 box / 2 tablet, chewable in 1 packet of Thompson Antacid, a human over the counter drug labeled by Thompson. This tablet, chewable is formulated for oral use and contains calcium carbonate as the active substance.

Is this product currently listed with the FDA?

Yes, this product is active and verified within the NDC Directory. It was introduced to the market by Thompson on May 02, 2022. The current certification is valid through December 31, 2026.

What are the primary indications for this medication?

This medication is used to treat symptoms caused by too much stomach acid such as heartburn, upset stomach, or indigestion. It is an antacid that works by lowering the amount of acid in the stomach. Check the ingredients on the label even if you have used the product before. The manufacturer may have changed the ingredients. Also, products with similar names may contain different ingredients meant for different purposes. Taking the wrong product could harm you.

How is this Thompson product billed for insurance claims?

For medical billing and reimbursement, this package follows the 11-digit CMS format: 73408092133. The table below illustrates the segment conversion from the 10-digit labeler code to the 11-digit provider format.

11-Digit Code Conversion

Billing payers usually require a 5-4-2 segment configuration. Below is the conversion from the 10-digit package format to the 11-digit billing format:

10-Digit Format (5-3-2)
73408-921-33
11-Digit CMS (5-4-2)
73408-0921-33

Note: The zero is added to the Product segment to maintain the 5-4-2 structure.