Mucus Er Tablet, Multilayer, Extended Release
NDC 42507-471

View dosage, usage, ingredients, routes, and UNII mappings.
Table of Contents
  1. Product Information
  2. Product Packages
  3. Product Characteristics
  4. What is NDC 42507-471?
  5. Mucus Er Uses
  6. Active Ingredients
  7. Active Ingredients UNII Codes
  8. Inactive Ingredients UNII Codes
  9. NDC to RxNorm Crosswalk
  10. Pharmacologic Classes

Product Information

Mucus Er (guaifenesin) is a ANDA-approved product labeled by Hyvee Inc. This medication is used for the temporary relief of coughs caused by the common cold, bronchitis, and other breathing illnesses. It is supplied as a blue tablet, multilayer, extended release for oral administration. This product entry covers the primary NDC 42507-471 and its associated package configuration. This profile includes active and inactive ingredient UNII references and FDA labeling data.

Primary Identification

NDC Product Code:
42507-471
Proprietary Name:
Mucus Er
Non-Proprietary Name: [1]
Guaifenesin
Substance Name: [2]
Guaifenesin
NDC Directory Status:
Human Otc Drug
Product Type: [3]
ACTIVE PRODUCT INCLUDED in the NDC Directory
Code Navigator:

Clinical Specifications

Dosage Form:
Tablet, Multilayer, Extended Release - A solid dosage form containing medicinal substances that have been compressed to form a multiple-layered tablet or a tablet-within-a-tablet, the inner tablet being the core and the outer portion being the shell, which, additionally, is covered in a designated coating; the tablet is formulated in such manner as to allow at least a reduction in dosing frequency as compared to that drug presented as a conventional dosage form.
Administration Route(s): [4]
Oral - Administration to or by way of the mouth.

Labeler & Regulatory Data

Labeler Name: [5]
Hyvee Inc
Labeler Code:
42507
Product Label ID:
851f49b5-34a0-4c58-90fa-51e265c7f731
FDA Application Number: [6]
ANDA078912
Marketing Category: [8]
ANDA - A product marketed under an approved Abbreviated New Drug Application.

Marketing Timeline

Start Marketing Date: [9]
03-10-2026
Listing Expiration Date: [11]
12-31-2027
Exclude Flag: [12]
N

Product Characteristics

Color(s):
BLUE (C48333)
Shape:
OVAL (C48345)
Size(s):
22 MM
Imprint(s):
L4S1
Score:
1

Code Structure Chart

Product Details

What is NDC 42507-471?

The NDC code 42507-471 is assigned by the FDA to the product Mucus Er. It is commonly known by its generic name, guaifenesin. This pharmaceutical product is labeled by Hyvee Inc and is currently categorized as listed product. The medication is a tablet, multilayer, extended release administered via oral route. In terms of distribution, this product is available in a single package configuration. The associated package NDC(s) include: 42507-471-14. 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?

This medication is used for the temporary relief of coughs caused by the common cold, bronchitis, and other breathing illnesses. This product is usually not used for ongoing cough from smoking or long-term breathing problems (such as chronic bronchitis, emphysema) unless directed by your doctor. Guaifenesin is an expectorant. It works by thinning and loosening mucus in the airways, clearing congestion, and making breathing easier. If you are self-treating with this medication, it is important to read the package instructions carefully before you start using this product to be sure it is right for you. (See also Precautions section.) Cough-and-cold products have not been shown to be safe or effective in children younger than 6 years. This product (sustained-release) is not recommended for use in children younger than 12 years unless specifically directed by the doctor. Ask your doctor or pharmacist for more details about using your product safely. These products do not cure or shorten the length of the common cold. To decrease the risk for side effects, carefully follow all dosage directions. Do not give other cough-and-cold medication that might contain the same or similar ingredients (see also Drug Interactions section). Ask the doctor or pharmacist about other ways to relieve cough and cold symptoms (such as drinking enough fluids, using a humidifier or saline nose drops/spray).

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.
  • GUAIFENESIN 1200 mg/1 - An expectorant that also has some muscle relaxing action. It is used in many cough preparations.

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:

What is the NDC to RxNorm Crosswalk for this product?

RxNorm is a normalized naming system for generic and branded drugs that assigns unique concept identifier(s) known as RxCUIs to NDC products.The NDC to RxNorm Crosswalk for this produdct indicates multiple concept unique identifiers (RXCUIs) are associated with this product:
  • RxCUI: 310621 - guaiFENesin 1200 MG 12HR Extended Release Oral Tablet
  • RxCUI: 310621 - 12 HR guaifenesin 1200 MG Extended Release Oral Tablet
  • RxCUI: 310621 - guaifenesin 1200 MG 12 HR Extended Release Oral Tablet

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".