Trihexyphenidyl Hydrochloride Solution
NDC Package 0121-0658-16

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

Package Information

Trihexyphenidyl Hydrochloride solution is trihexyphenidyl is indicated as an adjunct in the treatment of all forms of parkinsonism (postencephalitic, arteriosclerotic, and idiopathic). This formulation utilizes a solution delivery system. Marketed by Pai Holdings, Llc Dba Pai Pharma, this product is identified by NDC 0121-0658 and is authorized under FDA application ANDA040177.

Identification & Billing

NDC Package Code
0121-0658-16
Package Description
473 mL in 1 BOTTLE
Product Code
0121-0658
11-Digit Billing Format
00121065816
Billing Unit
C73398
RxNorm Crosswalk

Clinical Specifications

Proprietary Name
Trihexyphenidyl Hydrochloride
Non-Proprietary Name
Trihexyphenidyl Hydrochloride
Substance Name
Trihexyphenidyl Hydrochloride
Dosage Form
Solution - A clear, homogeneous liquid1 dosage form that contains one or more chemical substances dissolved in a solvent or mixture of mutually miscible solvents.
Administration Route
Oral - Administration to or by way of the mouth.
Active Ingredient(s)
TRIHEXYPHENIDYL HYDROCHLORIDE 2 mg/5mL
Usage Information
Trihexyphenidyl is indicated as an adjunct in the treatment of all forms of parkinsonism (postencephalitic, arteriosclerotic, and idiopathic). It is often useful as adjuvant therapy when treating these forms of parkinsonism with levodopa. Additionally, it is indicated for the control of extrapyramidal disorders caused by central nervous system drugs such as the dibenzoxazepines, phenothiazines, thioxanthenes, and butyrophenones.

Regulatory & Marketing

Labeler Name
Pai Holdings, Llc Dba Pai Pharma
Product Type
Human Prescription Drug
FDA Application #
ANDA040177
Marketing Category
ANDA - A product marketed under an approved Abbreviated New Drug Application.
Start Marketing Date
05-15-1997
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 0121-0658-16 identifies a specific commercial package of 473 ml in 1 bottle of Trihexyphenidyl Hydrochloride, a human prescription drug labeled by Pai Holdings, Llc Dba Pai Pharma. This solution is formulated for oral use and contains trihexyphenidyl 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 Pai Holdings, Llc Dba Pai Pharma on May 15, 1997. The current certification is valid through December 31, 2026.

How is this Pai Holdings, Llc Dba Pai Pharma product billed for insurance claims?

For medical billing and reimbursement, this package follows the 11-digit CMS format: 00121065816. Quantities are measured in C73398. 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 (4-4-2)
0121-0658-16
11-Digit CMS (5-4-2)
00121-0658-16

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