Daybue Stix For Solution
NDC Package 63090-665-60

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

Package Information

Daybue Stix (trofinetide) for solutions is dAYBUE is indicated for the treatment of Rett syndrome in adults and pediatric patients 2 years of age and older. This formulation utilizes a for solution delivery system. Marketed by Acadia Pharmaceuticals Inc., this product is identified by NDC 63090-665 and is authorized under FDA application NDA219884.

Identification & Billing

NDC Package Code
63090-665-60
Package Description
60 PACKET in 1 CARTON / 1 FOR SOLUTION in 1 PACKET (63090-665-01)
Product Code
63090-665
11-Digit Billing Format
63090066560
Billing Unit
EA - Billing unit of "each" is used when the product is dispensed in discreet units.
Units Per Package
60 EA
RxNorm Crosswalk

Clinical Specifications

Proprietary Name
Daybue Stix
Non-Proprietary Name
Trofinetide
Substance Name
Trofinetide
Dosage Form
For Solution - A product, usually a solid, intended for solution prior to administration.
Administration Route
Oral - Administration to or by way of the mouth.
Active Ingredient(s)
TROFINETIDE 8000 mg/1
Pharmacologic Class
Usage Information
DAYBUE is indicated for the treatment of Rett syndrome in adults and pediatric patients 2 years of age and older.

Regulatory & Marketing

Labeler Name
Acadia Pharmaceuticals Inc.
Product Type
Human Prescription Drug
FDA Application #
NDA219884
Marketing Category
NDA - A product marketed under an approved New Drug Application.
Start Marketing Date
12-11-2025
Listing Expiration
12-31-2027
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 63090-665-60 identifies a specific commercial package of 60 packet in 1 carton / 1 for solution in 1 packet (63090-665-01) of Daybue Stix, a human prescription drug labeled by Acadia Pharmaceuticals Inc.. This product is billed for "EA" each discreet unit and contains an estimated amount of 60 billable units per package. This for solution is formulated for oral use and contains trofinetide 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 Acadia Pharmaceuticals Inc. on December 11, 2025. The current certification is valid through December 31, 2027.

How is this Acadia Pharmaceuticals Inc. product billed for insurance claims?

For medical billing and reimbursement, this package follows the 11-digit CMS format: 63090066560. Quantities are measured in per "each", products billed on a per each basis are usually products dispensed in discreet units.. There are 60 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)
63090-665-60
11-Digit CMS (5-4-2)
63090-0665-60

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