Doxepin Hydrochloride Capsule
NDC Package 42571-421-01

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

Doxepin Hydrochloride capsules are recommended for the treatment of:Psychoneurotic patients with depression and/or anxiety.Depression and/or anxiety associated with alcoholism (not to be taken concomitantly with alcohol).Depression and/or anxiety associated with organic disease (the possibility of drug interaction should be considered if the patient is receiving other drugs concomitantly).Psychotic depressive disorders with associated anxiety including involutional depression and manic-depressive disorders. This formulation utilizes a capsule delivery system. Marketed by Micro Labs Limited, this product is identified by NDC 42571-421 and is authorized under FDA application ANDA217688.

Identification & Billing

NDC Package Code
42571-421-01
Package Description
100 CAPSULE in 1 BOTTLE
Product Code
42571-421
11-Digit Billing Format
42571042101
RxNorm Crosswalk

Clinical Specifications

Proprietary Name
Doxepin Hydrochloride
Non-Proprietary Name
Doxepin Hydrochloride
Substance Name
Doxepin Hydrochloride
Dosage Form
Capsule - A solid oral dosage form consisting of a shell and a filling. The shell is composed of a single sealed enclosure, or two halves that fit together and which are sometimes sealed with a band. Capsule shells may be made from gelatin, starch, or cellulose, or other suitable materials, may be soft or hard, and are filled with solid or liquid ingredients that can be poured or squeezed.
Administration Route
Oral - Administration to or by way of the mouth.
Active Ingredient(s)
DOXEPIN HYDROCHLORIDE 25 mg/1
Pharmacologic Class
Tricyclic Antidepressant - [EPC] (Established Pharmacologic Class)
Usage Information
Doxepin hydrochloride capsules are recommended for the treatment of:Psychoneurotic patients with depression and/or anxiety.Depression and/or anxiety associated with alcoholism (not to be taken concomitantly with alcohol).Depression and/or anxiety associated with organic disease (the possibility of drug interaction should be considered if the patient is receiving other drugs concomitantly).Psychotic depressive disorders with associated anxiety including involutional depression and manic-depressive disorders.  The target symptoms of psychoneurosis that respond particularly well to doxepin hydrochloride capsules include anxiety, tension, depression, somatic symptoms and concerns, sleep disturbances, guilt, lack of energy, fear, apprehension and worry.  Clinical experience has shown that  doxepin hydrochloride capsules are safe and well tolerated even in the elderly patient. Owing to lack of clinical experience in the pediatric population, doxepin hydrochloride capsules are not recommended for use in children under 12 years of age.

Regulatory & Marketing

Labeler Name
Micro Labs Limited
Product Type
Human Prescription Drug
FDA Application #
ANDA217688
Marketing Category
ANDA - A product marketed under an approved Abbreviated New Drug Application.
Start Marketing Date
01-01-2024
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.

Other Available Packages

The following commercial packages are registered under the same Product NDC (42571-421). Click a package code to view its specific billing and regulatory data.

42571-421-13
1000 CAPSULE 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 42571-421-01 identifies a specific commercial package of 100 capsule in 1 bottle of Doxepin Hydrochloride, a human prescription drug labeled by Micro Labs Limited. This capsule is formulated for oral use and contains doxepin hydrochloride 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 Micro Labs Limited on January 01, 2024. The current certification is valid through December 31, 2026.

How is this Micro Labs Limited product billed for insurance claims?

For medical billing and reimbursement, this package follows the 11-digit CMS format: 42571042101. 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)
42571-421-01
11-Digit CMS (5-4-2)
42571-0421-01

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