MedPath

Dorzolamide

Generic Name
Dorzolamide
Brand Names
Cosopt, Trusopt
Drug Type
Small Molecule
Chemical Formula
C10H16N2O4S3
CAS Number
120279-96-1
Unique Ingredient Identifier
9JDX055TW1

Overview

Dorzolamide is a non-bacteriostatic sulfonamide derivative and topical carbonic anhydrase (CA) inhibitor that treats elevated intraocular pressure (IOP) associated with open-angle glaucoma and ocular hypertension. It works by blocking an enzyme in the ciliary process that regulates ion balance and fluid pressure in the eyes. Unlike oral CA inhibitors, dorzolamide has negligible effects of acid-base or electrolyte disturbances and other systemic adverse effects. First marketed in 1995, dorzolamide is available in ophthalmic solutions as monotherapy marketed as Trusopt or in combination with timolol as Cosopt PF.

Background

Dorzolamide is a non-bacteriostatic sulfonamide derivative and topical carbonic anhydrase (CA) inhibitor that treats elevated intraocular pressure (IOP) associated with open-angle glaucoma and ocular hypertension. It works by blocking an enzyme in the ciliary process that regulates ion balance and fluid pressure in the eyes. Unlike oral CA inhibitors, dorzolamide has negligible effects of acid-base or electrolyte disturbances and other systemic adverse effects. First marketed in 1995, dorzolamide is available in ophthalmic solutions as monotherapy marketed as Trusopt or in combination with timolol as Cosopt PF.

Indication

Dorzolamide is indicated for the management of elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma. It can also be used in combination with timolol for the same indication in patients who are insufficiently responsive to ophthalmic beta-blockers. Its pre-operative use was also investigated to prevent elevated intraocular pressure after neodynium yttrium aluminum garnet laser posterior capsulotomy.

Associated Conditions

  • Increased Intra Ocular Pressure (IOP)
  • Ocular Hypertension

Clinical Trials

Title
Posted
Study ID
Phase
Status
Sponsor
2023/12/20
Phase 2
Not yet recruiting
Kukje Pharma
2023/08/02
Phase 3
Completed
Jadran Galenski laboratorij d.d.
2023/08/02
Phase 3
Completed
Jadran Galenski laboratorij d.d.
2023/05/12
Phase 4
Completed
Laboratorios Poen
2021/10/19
Phase 2
UNKNOWN
2020/12/19
Phase 4
Withdrawn
2019/05/29
Phase 4
Completed
Afyon Kocatepe University Hospital
2015/08/13
Not Applicable
Completed
Glostrup University Hospital, Copenhagen
2015/03/17
Phase 3
Completed
2015/01/06
N/A
Completed
Applied Genetic Technologies Corp

FDA Drug Approvals

Approved Product
Manufacturer
NDC Code
Route
Strength
Effective Date
Bausch & Lomb Incorporated
24208-485
OPHTHALMIC
20 mg in 1 mL
12/31/2022
Leading Pharma, LLC
69315-305
OPHTHALMIC
20 mg in 1 mL
2/28/2022
Sandoz Inc
61314-030
OPHTHALMIC
20 mg in 1 mL
9/28/2017
ImprimisRx NJ
70261-520
OPHTHALMIC
20 mg in 1 mL
5/8/2018
Leading Pharma, LLC
69315-304
OPHTHALMIC
20 mg in 1 mL
1/13/2021
A-S Medication Solutions
50090-6814
OPHTHALMIC
22.3 mg in 1 mL
11/25/2021
A-S Medication Solutions
50090-4882
OPHTHALMIC
20 mg in 1 mL
11/26/2021
ImprimisRx NJ
70261-519
OPHTHALMIC
20 mg in 1 mL
5/8/2018
Bryant Ranch Prepack
72162-2184
OPHTHALMIC
20 mg in 1 mL
12/11/2023
FDC Limited
55545-1007
OPHTHALMIC
20 mg in 1 mL
11/15/2019

EMA Drug Approvals

Approved Product
Authorization Holder
Status
Issued Date
No EMA approvals found for this drug.

HSA Drug Approvals

Approved Product
Manufacturer
Approval Number
Dosage Form
Strength
Approval Date
COSOPT OPHTHALMIC SOLUTION
SIN11643P
SOLUTION
2%
8/22/2001
ZOLICHEK-T EYE DROPS SOLUTION
SIN14984P
SOLUTION, STERILE
20mg/ml
4/8/2016
DORZOLAMIDE AND TIMOLOL STADA EYE DROPS 20MG/5MG
SIN14556P
SOLUTION, STERILE
20mg/ml
6/3/2014
COSOPT-S OPHTHALMIC SOLUTION
SIN15435P
SOLUTION, STERILE
20mg/ml
2/26/2018
LAMISOPT PLUS EYE DROPS, SOLUTION 20 MG/ML + 5 MG/ML
SIN14903P
SOLUTION
20 mg/ml
12/15/2015
ZOLICHEK EYE DROPS SOLUTION 2%
SIN14985P
SOLUTION, STERILE
20mg/ml
4/8/2016
LAMISOPT EYE DROPS, SOLUTION 20 MG/ML
SIN14893P
SOLUTION
20.000 mg/ ml
11/5/2015
TRUSOPT OPHTHALMIC SOLUTION 2%
SIN08880P
SOLUTION
2%
8/28/1996

NMPA Drug Approvals

Approved Product
Company
Approval Number
Drug Type
Dosage Form
Approval Date
No NMPA approvals found for this drug.

PPB Drug Approvals

Approved Product
Registration No.
Company
Licence No.
Strength
Registration Date
No PPB approvals found for this drug.
© Copyright 2025. All Rights Reserved by MedPath