Primidone Tablet
NDC Package 42291-511-50

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

Package Information

Primidone tablets is a medication used alone or with other medications to control seizures. This formulation utilizes a tablet delivery system. Marketed by Avkare, this product is identified by NDC 42291-511 and is authorized under FDA application ANDA040866.

Identification & Billing

NDC Package Code
42291-511-50
Package Description
500 TABLET in 1 BOTTLE
Product Code
42291-511
11-Digit Billing Format
42291051150
Billing Unit
EA - Billing unit of "each" is used when the product is dispensed in discreet units.
Units Per Package
500 EA
RxNorm Crosswalk

Clinical Specifications

Proprietary Name
Primidone
Non-Proprietary Name
Primidone
Substance Name
Primidone
Dosage Form
Tablet - A solid dosage form containing medicinal substances with or without suitable diluents.
Administration Route
Oral - Administration to or by way of the mouth.
Active Ingredient(s)
PRIMIDONE 250 mg/1
Pharmacologic Class
Usage Information
This medication is used alone or with other medications to control seizures. Controlling and reducing seizures lets you do more of your normal daily activities, reduces your risk of harm when you lose consciousness, and lessens your risk for a possibly life-threatening condition of frequent, repeated seizures. Primidone belongs to a class of drugs known as barbiturate anticonvulsants. It works by controlling the abnormal electrical activity in the brain that occurs during a seizure.

Regulatory & Marketing

Labeler Name
Avkare
Product Type
Human Prescription Drug
FDA Application #
ANDA040866
Marketing Category
ANDA - A product marketed under an approved Abbreviated New Drug Application.
Start Marketing Date
03-22-2022
End Marketing Date
11-30-2026
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.

Other Available Packages

The following commercial packages are registered under the same Product NDC (42291-511). Click a package code to view its specific billing and regulatory data.

42291-511-01
100 TABLET in 1 BOTTLE

* 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 42291-511-50 identifies a specific commercial package of 500 tablet in 1 bottle of Primidone, a human prescription drug labeled by Avkare. This product is billed for "EA" each discreet unit and contains an estimated amount of 500 billable units per package. This tablet is formulated for oral use and contains primidone 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 Avkare on March 22, 2022.

What are the primary indications for this medication?

This medication is used alone or with other medications to control seizures. Controlling and reducing seizures lets you do more of your normal daily activities, reduces your risk of harm when you lose consciousness, and lessens your risk for a possibly life-threatening condition of frequent, repeated seizures. Primidone belongs to a class of drugs known as barbiturate anticonvulsants. It works by controlling the abnormal electrical activity in the brain that occurs during a seizure.

How is this Avkare product billed for insurance claims?

For medical billing and reimbursement, this package follows the 11-digit CMS format: 42291051150. Quantities are measured in per "each", products billed on a per each basis are usually products dispensed in discreet units.. There are 500 total billable units per package. 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)
42291-511-50
11-Digit CMS (5-4-2)
42291-0511-50

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