Dorzolamide Hydrochloride And Timolol Maleate Solution/ Drops
NDC 42571-382

View dosage, usage, ingredients, routes, and UNII mappings.
Table of Contents
  1. Product Information
  2. Product Packages
  3. What is NDC 42571-382?
  4. Dorzolamide Hydrochloride And Timolol Maleate Uses
  5. Active Ingredients
  6. Active Ingredients UNII Codes
  7. Inactive Ingredients UNII Codes
  8. NDC to RxNorm Crosswalk
  9. Pharmacologic Classes
  10. Patient Education

Product Information

Dorzolamide Hydrochloride And Timolol Maleate (dorzolamide hydrochloride and timolol maleate preservative free) is a ANDA-approved product labeled by Micro Labs Limited. This medication is typically used as a adrenergic beta-antagonists [moa]. It is supplied as a solution/ drops for ophthalmic administration. This product entry covers the primary NDC 42571-382 and 2 associated package configurations. This profile includes active and inactive ingredient UNII references and FDA labeling data.

Primary Identification

NDC Product Code:
42571-382
Proprietary Name:
Dorzolamide Hydrochloride And Timolol Maleate
Non-Proprietary Name: [1]
Dorzolamide Hydrochloride And Timolol Maleate Preservative Free
Substance Name: [2]
Dorzolamide Hydrochloride; Timolol Maleate
NDC Directory Status:
Human Prescription Drug
Product Type: [3]
ACTIVE PRODUCT INCLUDED in the NDC Directory
Code Navigator:

Clinical Specifications

Dosage Form:
Solution/ Drops - A solution which is usually administered in a drop-wise fashion.
Administration Route(s): [4]
Ophthalmic - Administration to the external eye.

Labeler & Regulatory Data

Labeler Name: [5]
Micro Labs Limited
Labeler Code:
42571
Product Label ID:
b0a1d984-efee-4751-9797-c09adc2d307d
FDA Application Number: [6]
ANDA215936
Marketing Category: [8]
ANDA - A product marketed under an approved Abbreviated New Drug Application.

Marketing Timeline

Start Marketing Date: [9]
02-15-2022
Listing Expiration Date: [11]
12-31-2027
Exclude Flag: [12]
N

Code Structure Chart

Product Details

What is NDC 42571-382?

The NDC code 42571-382 is assigned by the FDA to the product Dorzolamide Hydrochloride And Timolol Maleate. It is commonly known by its generic name, dorzolamide hydrochloride and timolol maleate preservative free. This pharmaceutical product is labeled by Micro Labs Limited and is currently categorized as listed product. The medication is a solution/ drops administered via ophthalmic route. In terms of distribution, this product is available in 2 different package configurations. The associated package NDC(s) include: 42571-382-27, 42571-382-73. 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?

Dorzolamide hydrochloride and timolol maleate ophthalmic solution preservative free is indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension who are insufficiently responsive to beta-blockers (failed to achieve target IOP determined after multiple measurements over time). The IOP-lowering of dorzolamide hydrochloride and timolol maleate ophthalmic solution administered twice a day was slightly less than that seen with the concomitant administration of 0.5% timolol administered twice a day and 2% dorzolamide administered three times a day [see Clinical Studies (14.1)].

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.
  • DORZOLAMIDE HYDROCHLORIDE 20 mg/mL
  • TIMOLOL MALEATE 5 mg/mL - A beta-adrenergic antagonist that is similar in action to PROPRANOLOL; the levo-isomer is more active. Timolol has been proposed as an anti-hypertensive, anti-arrhythmic, anti-angina, and anti-glaucoma agent. It is also used in the treatment of MIGRAINE DISORDERS and tremor.

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: 1922783 - dorzolamide 2 % / timolol 0.5 % PF Ophthalmic Solution
  • RxCUI: 1922783 - Preservative-Free dorzolamide 20 MG/ML / timolol 5 MG/ML Ophthalmic Solution

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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Patient Education

Dorzolamide and Timolol Ophthalmic


The combination of dorzolamide and timolol is used to treat eye conditions, including glaucoma and ocular hypertension, in which increased pressure can lead to a gradual loss of vision. Dorzolamide and timolol is used for patients whose eye condition has not responded to another medication. Dorzolamide is in a class of medications called topical carbonic anhydrase inhibitors. Timolol is in a class of medications called topical beta blockers. Dorzolamide and timolol lowers pressure in the eye by decreasing the production of natural fluids in the eye.
[Learn More]


* Please review the full disclaimer at the bottom of this page.

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".