Complete Acid Reducer Tablet, Chewable
NDC Package 51316-588-63

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

Package Information

Complete Acid Reducer (famotidine, calcium carbonate, magnesium hydroxide) tablets is •adults and children 12 years and over:•do not swallow tablet whole: chew completely•to relieve symptoms, chew 1 tablet before swallowing•do not use more than 2 chewable tablets in 24 hours•children under 12 years: ask a doctor. This formulation utilizes a tablet, chewable delivery system. Marketed by Cvs Woonsocket Prescription Center, Incorporated, this product is identified by NDC 51316-588 and is authorized under FDA application ANDA077355.

Identification & Billing

NDC Package Code
51316-588-63
Package Description
25 TABLET, CHEWABLE in 1 BOTTLE
Product Code
51316-588
11-Digit Billing Format
51316058863
RxNorm Crosswalk
  • RxCUI: 283641 - famotidine 10 MG / calcium carbonate 800 MG / magnesium hydroxide 165 MG Chewable Tablet
  • RxCUI: 283641 - calcium carbonate 800 MG / famotidine 10 MG / magnesium hydroxide 165 MG Chewable Tablet
  • RxCUI: 283641 - calcium carbonate 800 MG / famotidine 10 MG / milk of magnesia 165 MG Chewable Tablet

Clinical Specifications

Proprietary Name
Complete Acid Reducer
Non-Proprietary Name
Famotidine, Calcium Carbonate, Magnesium Hydroxide
Substance Name
Calcium Carbonate; Famotidine; Magnesium Hydroxide
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)
Pharmacologic Class
Usage Information
•adults and children 12 years and over:•do not swallow tablet whole: chew completely•to relieve symptoms, chew 1 tablet before swallowing•do not use more than 2 chewable tablets in 24 hours•children under 12 years: ask a doctor

Regulatory & Marketing

Labeler Name
Cvs Woonsocket Prescription Center, Incorporated
Product Type
Human Otc Drug
FDA Application #
ANDA077355
Marketing Category
ANDA - A product marketed under an approved Abbreviated New Drug Application.
Start Marketing Date
04-06-2026
Listing Expiration
12-31-2027
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 51316-588-63 identifies a specific commercial package of 25 tablet, chewable in 1 bottle of Complete Acid Reducer, a human over the counter drug labeled by Cvs Woonsocket Prescription Center, Incorporated. This tablet, chewable is formulated for oral use and contains calcium carbonate; famotidine; magnesium hydroxide 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 Cvs Woonsocket Prescription Center, Incorporated on April 06, 2026. The current certification is valid through December 31, 2027.

How is this Cvs Woonsocket Prescription Center, Incorporated product billed for insurance claims?

For medical billing and reimbursement, this package follows the 11-digit CMS format: 51316058863. 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)
51316-588-63
11-Digit CMS (5-4-2)
51316-0588-63

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