Methohexital Sodium Injection
NDC Package 23155-893-31

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

Package Information

Methohexital Sodium injection is methohexital Sodium for Injection can be used in adults as follows:For intravenous induction of anesthesia prior to the use of other general anesthetic agents.For intravenous induction of anesthesia and as an adjunct to subpotent inhalational anesthetic agents (such as nitrous oxide in oxygen) for short surgical procedures; Methohexital Sodium for Injection may be given by infusion or intermittent injection.For use along with other parenteral agents, usually narcotic analgesics, to supplement subpotent inhalational anesthetic agents (such as nitrous oxide in oxygen) for longer surgical procedures.As intravenous anesthesia for short surgical, diagnostic, or therapeutic procedures associated with minimal painful stimuli (See WARNINGS).As an agent for inducing a hypnotic state.Methohexital Sodium for Injection can be used in pediatric patients older than 1 month as follows:For rectal or intramuscular induction of anesthesia prior to the use of other general anesthetic agents.For rectal or intramuscular induction of anesthesia and as an adjunct to subpotent inhalational anesthetic agents for short surgical procedures.As rectal or intramuscular anesthesia for short surgical, diagnostic, or therapeutic procedures associated with minimal painful stimuli. This formulation utilizes a injection delivery system. Marketed by Heritage Pharmaceuticals Inc. D/b/a Avet Pharmaceuticals Inc., this product is identified by NDC 23155-893 and is authorized under FDA application ANDA215488.

Identification & Billing

NDC Package Code
23155-893-31
Package Description
1 VIAL in 1 CARTON / 500 mg in 1 VIAL
Product Code
23155-893
11-Digit Billing Format
23155089331
Billing Unit
EA - Billing unit of "each" is used when the product is dispensed in discreet units.
Units Per Package
1 EA
RxNorm Crosswalk
  • RxCUI: 1244233 - methohexital sodium Variable Concentration Multi-Use Injectable Solution
  • RxCUI: 1244233 - methohexital sodium 50 MG/ML Injectable Solution

Clinical Specifications

Proprietary Name
Methohexital Sodium
Non-Proprietary Name
Methohexital Sodium
Substance Name
Methohexital Sodium
Dosage Form
Injection - A sterile preparation intended for parenteral use; five distinct classes of injections exist as defined by the USP.
Administration Route
  • Intramuscular - Administration within a muscle.
  • Intravenous - Administration within or into a vein or veins.
  • Rectal - Administration to the rectum.
Active Ingredient(s)
METHOHEXITAL SODIUM 500 mg/500mg
Pharmacologic Class
Usage Information
Methohexital Sodium for Injection can be used in adults as follows:For intravenous induction of anesthesia prior to the use of other general anesthetic agents.For intravenous induction of anesthesia and as an adjunct to subpotent inhalational anesthetic agents (such as nitrous oxide in oxygen) for short surgical procedures; Methohexital Sodium for Injection may be given by infusion or intermittent injection.For use along with other parenteral agents, usually narcotic analgesics, to supplement subpotent inhalational anesthetic agents (such as nitrous oxide in oxygen) for longer surgical procedures.As intravenous anesthesia for short surgical, diagnostic, or therapeutic procedures associated with minimal painful stimuli (See WARNINGS).As an agent for inducing a hypnotic state.Methohexital Sodium for Injection can be used in pediatric patients older than 1 month as follows:For rectal or intramuscular induction of anesthesia prior to the use of other general anesthetic agents.For rectal or intramuscular induction of anesthesia and as an adjunct to subpotent inhalational anesthetic agents for short surgical procedures.As rectal or intramuscular anesthesia for short surgical, diagnostic, or therapeutic procedures associated with minimal painful stimuli.
DEA Schedule
Schedule IV (CIV) Substances

Regulatory & Marketing

Labeler Name
Heritage Pharmaceuticals Inc. D/b/a Avet Pharmaceuticals Inc.
Product Type
Human Prescription Drug
FDA Application #
ANDA215488
Marketing Category
ANDA - A product marketed under an approved Abbreviated New Drug Application.
Start Marketing Date
12-12-2024
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.

Frequently Asked Questions

What is the distribution configuration for this product package?

The code 23155-893-31 identifies a specific commercial package of 1 vial in 1 carton / 500 mg in 1 vial of Methohexital Sodium, a human prescription drug labeled by Heritage Pharmaceuticals Inc. D/b/a Avet Pharmaceuticals Inc.. This product is billed for "EA" each discreet unit and contains an estimated amount of 1 billable units per package. This injection is formulated for intramuscular; intravenous; rectal use and contains methohexital sodium 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 Heritage Pharmaceuticals Inc. D/b/a Avet Pharmaceuticals Inc. on December 12, 2024. The current certification is valid through December 31, 2026.

How is this Heritage Pharmaceuticals Inc. D/b/a Avet Pharmaceuticals Inc. product billed for insurance claims?

For medical billing and reimbursement, this package follows the 11-digit CMS format: 23155089331. Quantities are measured in per "each", products billed on a per each basis are usually products dispensed in discreet units.. There are 1 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)
23155-893-31
11-Digit CMS (5-4-2)
23155-0893-31

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