Standardized Cat Hair Injection
NDC Package 49643-705-05

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

Standardized Cat Hair (cat hair) injection is studies have shown that skin tests with cat extract are useful in the diagnosis of cat allergy. This formulation utilizes a injection delivery system. Marketed by Allermed Laboratories, Inc., this product is identified by NDC 49643-705 and is authorized under FDA application BLA103473.

Identification & Billing

NDC Package Code
49643-705-05
Package Description
5 mL in 1 VIAL, MULTI-DOSE
Product Code
49643-705
11-Digit Billing Format
49643070505
RxNorm Crosswalk
  • RxCUI: 851948 - cat hair extract 10,000 BAU/mL Injectable Solution
  • RxCUI: 851948 - cat hair extract 10000 BAU/ML Injectable Solution
  • RxCUI: 851948 - Felis catus hair extract 10,000 BAU/ML Injectable Solution

Clinical Specifications

Proprietary Name
Standardized Cat Hair
Non-Proprietary Name
Cat Hair
Substance Name
Felis Catus Hair
Dosage Form
Injection - A sterile preparation intended for parenteral use; five distinct classes of injections exist as defined by the USP.
Administration Route
  • Cutaneous - Administration to the skin.
  • Intradermal - Administration within the dermis.
  • Subcutaneous - Administration beneath the skin; hypodermic. Synonymous with the term SUBDERMAL.
Active Ingredient(s)
FELIS CATUS HAIR 10000 [BAU]/mL
Pharmacologic Class
Usage Information
Studies have shown that skin tests with cat extract are useful in the diagnosis of cat allergy. As a rule, persons with cat allergy have positive skin reactions when tested with cat extract, and non-allergic individuals rarely react7, 8, 9. However, the relationship between a positive skin test and the appearance of clinical symptoms after exposure to a cat is not absolute, i.e., some skin-test positive persons do not experience allergic symptoms after exposure10. Failure to experience symptoms may be dose related, since it is known that cats vary significantly in the amount of Fel d1 they produce11. The efficacy of cat extract immunotherapy in the treatment of bronchial asthma has been shown in two studies12, 13. A reduction in bronchial sensitivity was observed in five patients with cat allergy, whereas no reduction was observed in placebo treated, cat-allergic patients.

Regulatory & Marketing

Labeler Name
Allermed Laboratories, Inc.
Product Type
Human Prescription Drug
FDA Application #
BLA103473
Marketing Category
BLA - A product marketed under an approved Biologic License Application.
Start Marketing Date
08-15-1992
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 (49643-705). Click a package code to view its specific billing and regulatory data.

49643-705-10
10 mL in 1 VIAL, MULTI-DOSE
49643-705-30
30 mL in 1 VIAL, MULTI-DOSE
49643-705-50
50 mL in 1 VIAL, MULTI-DOSE

* 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 49643-705-05 identifies a specific commercial package of 5 ml in 1 vial, multi-dose of Standardized Cat Hair, a human prescription drug labeled by Allermed Laboratories, Inc.. This injection is formulated for cutaneous; intradermal; subcutaneous use and contains felis catus hair 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 Allermed Laboratories, Inc. on August 15, 1992. The current certification is valid through December 31, 2026.

How is this Allermed Laboratories, Inc. product billed for insurance claims?

For medical billing and reimbursement, this package follows the 11-digit CMS format: 49643070505. 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)
49643-705-05
11-Digit CMS (5-4-2)
49643-0705-05

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