Gwyn Lo Patch
NDC 49502-627

View dosage, usage, ingredients, routes, and UNII mappings.
Table of Contents
  1. Product Information
  2. Product Packages
  3. What is NDC 49502-627?
  4. Gwyn Lo Uses
  5. Active Ingredients
  6. Active Ingredients UNII Codes
  7. Inactive Ingredients UNII Codes
  8. Pharmacologic Classes

Product Information

This code was recently added to the official NDC directory and the product has entered commercial distribution.

Gwyn Lo (norelgestromin and ethinyl estradiol) is a NDA-approved product labeled by Viatris Specialty Llc. This medication is typically used as a estrogen receptor agonists [moa]. It is supplied as a patch for transdermal administration. This product entry covers the primary NDC 49502-627 and its associated package configuration. This profile includes active and inactive ingredient UNII references and FDA labeling data.

Primary Identification

NDC Product Code:
49502-627
Proprietary Name:
Gwyn Lo
Non-Proprietary Name: [1]
Norelgestromin And Ethinyl Estradiol
Substance Name: [2]
Norelgestromin; Ethinyl Estradiol
NDC Directory Status:
Human Prescription Drug
Product Type: [3]
ACTIVE PRODUCT INCLUDED in the NDC Directory
Code Navigator:

Clinical Specifications

Dosage Form:
Patch - A drug delivery system that often contains an adhesive backing that is usually applied to an external site on the body. Its ingredients either passively diffuse from, or are actively transported from, some portion of the patch. Depending upon the patch, the ingredients are either delivered to the outer surface of the body or into the body. A patch is sometimes synonymous with the terms ‘extended release film’ and ‘system’.
Administration Route(s): [4]
Transdermal - Administration through the dermal layer of the skin to the systemic circulation by diffusion.

Labeler & Regulatory Data

Labeler Name: [5]
Viatris Specialty Llc
Labeler Code:
49502
Product Label ID:
e92741f4-87fe-429f-b5b5-c558ed5f4fa9
FDA Application Number: [6]
NDA219990
Marketing Category: [8]
NDA - A product marketed under an approved New Drug Application.

Marketing Timeline

Start Marketing Date: [9]
07-28-2026
Listing Expiration Date: [11]
12-31-2027
Exclude Flag: [12]
N

Code Structure Chart

Product Details

What is NDC 49502-627?

The NDC code 49502-627 is assigned by the FDA to the product Gwyn Lo. It is commonly known by its generic name, norelgestromin and ethinyl estradiol. This pharmaceutical product is labeled by Viatris Specialty Llc and is currently categorized as listed product. The medication is a patch administered via transdermal route. Beyond standard identification, this entry provides technical data including pharmacologic classes, UNII ingredient references, and RxNorm cross-referencing for healthcare systems.

What are the uses of this product?

GWYN LO is indicated for the prevention of pregnancy in women with a body mass index (BMI) < 30 kg/m2 for whom a combined hormonal contraceptive is appropriate.

What are Active Ingredients of this product?

An active ingredient is the substance responsible for the medicinal effects of a product specified by the substance's molecular structure or if the molecular structure is not known, defined by an unambiguous definition that identifies the substance. Each active ingredient name is the preferred term of the UNII code submitted.
  • NORELGESTROMIN 20 ug/d - transdermal hormonal contraceptive
  • ETHINYL ESTRADIOL 220 ug/d - A semisynthetic alkylated ESTRADIOL with a 17-alpha-ethinyl substitution. It has high estrogenic potency when administered orally, and is often used as the estrogenic component in ORAL CONTRACEPTIVES.

Which are the associated UNII Codes?

The UNII codes for the active ingredients in this product are:

Which are the Inactive Ingredients associated UNII Codes?

The inactive ingredients are all the component of a medicinal product OTHER than the active ingredient(s). The acronym "UNII" stands for “Unique Ingredient Identifier” and is used to identify each inactive ingredient present in a product. The UNII codes for the inactive ingredients in this product are:

Which are the Pharmacologic Classes of this product?

A pharmacologic class is a group of drugs that share the same scientifically documented properties. The following is a list of the reported pharmacologic class(es) corresponding to the active ingredients of this product.

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Product & Regulatory Definitions
What is the Non-Proprietary Name? The non-proprietary name is sometimes called the generic name. The generic name usually includes the active ingredient(s) of the product.
What is the Substance Name? An active ingredient is the substance responsible for the medicinal effects of a product specified by the substance's molecular structure or if the molecular structure is not known, defined by an unambiguous definition that identifies the substance. Each active ingredient name is the preferred term of the UNII code submitted.
What kind of product is this? Indicates the type of product, such as Human Prescription Drug or Human Over the Counter Drug. This data element matches the “Document Type” field of the Structured Product Listing.
What are the Administration Routes? The translation of the route code submitted by the firm, indicating route of administration.
What is the Labeler Name? Name of Company corresponding to the labeler code segment of the Product NDC.
What is the FDA Application Number? This corresponds to the NDA, ANDA, or BLA number reported by the labeler for products which have the corresponding Marketing Category designated. If the designated Marketing Category is OTC Monograph Final or OTC Monograph Not Final, then the Application number will be the CFR citation corresponding to the appropriate Monograph (e.g. “part 341”). For unapproved drugs, this field will be null.
What is the Marketing Category? Product types are broken down into several potential Marketing Categories, such as NDA/ANDA/BLA, OTC Monograph, or Unapproved Drug. One and only one Marketing Category may be chosen for a product, not all marketing categories are available to all product types. Currently, only final marketed product categories are included. The complete list of codes and translations can be found at www.fda.gov/edrls under Structured Product Labeling Resources.
What is the Start Marketing Date? This is the date that the labeler indicates was the start of its marketing of the drug product.
What is the Listing Expiration Date? This is the date when the listing record will expire if not updated or certified by the product labeler.
What is the NDC Exclude Flag? This field indicates whether the product has been removed/excluded from the NDC Directory for failure to respond to FDA"s requests for correction to deficient or non-compliant submissions, or because the listing certification is expired, or because the listing data was inactivated by FDA, or because it was discontinued by the labeler. Possible values in this field are: "D", "E", "I", "N", "U".