DORZOLAMIDE

Details

Stereochemistry	ABSOLUTE
Molecular Formula	C10H16N2O4S3
Molecular Weight	324.44
Optical Activity	UNSPECIFIED
Defined Stereocenters	2 / 2
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

CCN[C@H]1C[C@H](C)S(=O)(=O)C2=C1C=C(S2)S(N)(=O)=O

InChI

InChIKey=IAVUPMFITXYVAF-XPUUQOCRSA-N

InChI=1S/C10H16N2O4S3/c1-3-12-8-4-6(2)18(13,14)10-7(8)5-9(17-10)19(11,15)16/h5-6,8,12H,3-4H2,1-2H3,(H2,11,15,16)/t6-,8-/m0/s1

HIDE SMILES / InChI

Molecular Formula	C10H16N2O4S3
Molecular Weight	324.44
Charge	0
Count

Stereochemistry	ABSOLUTE
Additional Stereochemistry	No
Defined Stereocenters	2 / 2
E/Z Centers	0
Optical Activity	UNSPECIFIED

Description
Sources: https://www.merck.com/product/usa/pi_circulars/t/trusopt/trusopt_pi.pdf

Dorzolamide is a sulfonamide and a highly specific carbonic anhydrase II (CA-II) inhibitor, which is the main CA isoenzyme involved in aqueous humor secretion. Dorzolamide is marketed under the trade name Trusopt, indicated in the treatment of elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma. Carbonic anhydrase (CA) is an enzyme found in many tissues of the body including the eye. It catalyzes the reversible reaction involving the hydration of carbon dioxide and the dehydration of carbonic acid. In humans, carbonic anhydrase exists as a number of isoenzymes, the most active being carbonic anhydrase II (CA-II), found primarily in red blood cells (RBCs), but also in other tissues. Inhibition of carbonic anhydrase in the ciliary processes of the eye decreases aqueous humor secretion, presumably by slowing the formation of bicarbonate ions with subsequent reduction in sodium and fluid transport. The result is a reduction in intraocular pressure (IOP). TRUSOPT Ophthalmic Solution contains dorzolamide hydrochloride, an inhibitor of human carbonic anhydrase II. Following topical ocular administration, TRUSOPT reduces elevated intraocular pressure. Elevated intraocular pressure is a major risk factor in the pathogenesis of optic nerve damage and glaucomatous visual field loss.

Originator

Approval Year

Targets

Primary Target	Pharmacology	Condition	Potency
Carbonic anhydrase II 88 Target ID: CHEMBL205 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2010/020408s047lbl.pdf \| https://www.ncbi.nlm.nih.gov/pubmed/9029437 \| https://www.ncbi.nlm.nih.gov/pubmed/10948564	Inhibitor 8228		0.18 nM [IC50]
Carbonic anhydrase IV 33 Target ID: CHEMBL3729 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2010/020408s047lbl.pdf \| https://www.ncbi.nlm.nih.gov/pubmed/9029437	Inhibitor 8228		31.0 nM [Ki]

Conditions

Condition	Modality	Targets	Highest Phase	Product
Ocular hypertension 50 Sources: https://www.merck.com/product/usa/pi_circulars/t/trusopt/trusopt_pi.pdf	Primary		Approved 8360	TRUSOPT Approved Use TRUSOPT Ophthalmic Solution is indicated in the treatment of elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma. Launch Date 7.8693119E11
Open-angle glaucoma 51 Sources: https://www.merck.com/product/usa/pi_circulars/t/trusopt/trusopt_pi.pdf	Primary		Approved 8360	TRUSOPT Approved Use TRUSOPT Ophthalmic Solution is indicated in the treatment of elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma. Launch Date 7.8693119E11

AUC

Value	Dose	Co-administered	Analyte	Population
22667 μM × h EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/7720769	7.7 μg 4 times / day multiple, topical dose: 7.7 μg route of administration: Topical experiment type: MULTIPLE co-administered:		DORZOLAMIDE blood	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FED

T_1/2

Value	Dose	Co-administered	Analyte	Population
133 day EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/7720769	7.7 μg 4 times / day multiple, topical dose: 7.7 μg route of administration: Topical experiment type: MULTIPLE co-administered:		DORZOLAMIDE blood	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FED

Doses

Dose	Population	Adverse events
1 drop 3 times / day multiple, ophthalmic Highest studied dose Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/	unhealthy, 61.1 years (range: 23-83 years) n = 78 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma \| angle-closure glaucoma Age Group: 61.1 years (range: 23-83 years) Sex: M+F Population Size: 78 Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/	Other AEs: Application site irritation, Lacrimation... Other AEs: Application site irritation (8 patients) Lacrimation (1 patient) Foreign body sensation in eyes (1 patient) Conjunctival hyperemia (1 patient) Visual disturbance (1 patient) Throat pain (1 patient) Seborrheic dermatitis (1 patient) Sugar urinary (1 patient) Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/
1 drop 3 times / day multiple, ophthalmic Recommended Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9715679/	unhealthy, 62.1 years (range: 20-88 years) n = 148 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma Age Group: 62.1 years (range: 20-88 years) Sex: M+F Population Size: 148 Sources: https://pubmed.ncbi.nlm.nih.gov/9715679/	Other AEs: Ocular stinging, Conjunctival injection... Other AEs: Ocular stinging (22%) Conjunctival injection (12%) Headache (3%) Sources: https://pubmed.ncbi.nlm.nih.gov/9715679/

AEs

AE	Significance	Dose	Population
Conjunctival hyperemia	1 patient	1 drop 3 times / day multiple, ophthalmic Highest studied dose Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/	unhealthy, 61.1 years (range: 23-83 years) n = 78 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma \| angle-closure glaucoma Age Group: 61.1 years (range: 23-83 years) Sex: M+F Population Size: 78 Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/
Foreign body sensation in eyes	1 patient	1 drop 3 times / day multiple, ophthalmic Highest studied dose Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/	unhealthy, 61.1 years (range: 23-83 years) n = 78 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma \| angle-closure glaucoma Age Group: 61.1 years (range: 23-83 years) Sex: M+F Population Size: 78 Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/
Lacrimation	1 patient	1 drop 3 times / day multiple, ophthalmic Highest studied dose Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/	unhealthy, 61.1 years (range: 23-83 years) n = 78 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma \| angle-closure glaucoma Age Group: 61.1 years (range: 23-83 years) Sex: M+F Population Size: 78 Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/
Seborrheic dermatitis	1 patient	1 drop 3 times / day multiple, ophthalmic Highest studied dose Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/	unhealthy, 61.1 years (range: 23-83 years) n = 78 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma \| angle-closure glaucoma Age Group: 61.1 years (range: 23-83 years) Sex: M+F Population Size: 78 Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/
Sugar urinary	1 patient	1 drop 3 times / day multiple, ophthalmic Highest studied dose Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/	unhealthy, 61.1 years (range: 23-83 years) n = 78 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma \| angle-closure glaucoma Age Group: 61.1 years (range: 23-83 years) Sex: M+F Population Size: 78 Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/
Throat pain	1 patient	1 drop 3 times / day multiple, ophthalmic Highest studied dose Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/	unhealthy, 61.1 years (range: 23-83 years) n = 78 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma \| angle-closure glaucoma Age Group: 61.1 years (range: 23-83 years) Sex: M+F Population Size: 78 Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/
Visual disturbance	1 patient	1 drop 3 times / day multiple, ophthalmic Highest studied dose Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/	unhealthy, 61.1 years (range: 23-83 years) n = 78 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma \| angle-closure glaucoma Age Group: 61.1 years (range: 23-83 years) Sex: M+F Population Size: 78 Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/
Application site irritation	8 patients	1 drop 3 times / day multiple, ophthalmic Highest studied dose Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/	unhealthy, 61.1 years (range: 23-83 years) n = 78 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma \| angle-closure glaucoma Age Group: 61.1 years (range: 23-83 years) Sex: M+F Population Size: 78 Sources: https://pubmed.ncbi.nlm.nih.gov/14733709/
Conjunctival injection	12%	1 drop 3 times / day multiple, ophthalmic Recommended Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9715679/	unhealthy, 62.1 years (range: 20-88 years) n = 148 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma Age Group: 62.1 years (range: 20-88 years) Sex: M+F Population Size: 148 Sources: https://pubmed.ncbi.nlm.nih.gov/9715679/
Ocular stinging	22%	1 drop 3 times / day multiple, ophthalmic Recommended Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9715679/	unhealthy, 62.1 years (range: 20-88 years) n = 148 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma Age Group: 62.1 years (range: 20-88 years) Sex: M+F Population Size: 148 Sources: https://pubmed.ncbi.nlm.nih.gov/9715679/
Headache	3%	1 drop 3 times / day multiple, ophthalmic Recommended Dose: 1 drop, 3 times / day Route: ophthalmic Route: multiple Dose: 1 drop, 3 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/9715679/	unhealthy, 62.1 years (range: 20-88 years) n = 148 Health Status: unhealthy Condition: ocular hypertension \| open-angle glaucoma Age Group: 62.1 years (range: 20-88 years) Sex: M+F Population Size: 148 Sources: https://pubmed.ncbi.nlm.nih.gov/9715679/

Overview

CYP3A4	CYP2C9	CYP2D6	hERG
substrate 1709	substrate 1010		inhibitor 1599

OverviewOther

Other Inhibitor	Other Substrate	Other Inducer
	CYP2C19 985

Drug as victim

Target	Modality	Activity
CYP2C19 985	substrate 3326 Sources: https://www.pmda.go.jp/drugs/2010/P201000028/63015300_22200AMX00308_A100_1.pdf#page=9 Page: (PMDA) 9	yes
CYP2C9 1010	substrate 3326 Sources: https://www.pmda.go.jp/drugs/2010/P201000028/63015300_22200AMX00308_A100_1.pdf#page=9 Page: (PMDA) 9	yes
CYP3A4 1709	substrate 3326 Sources: https://www.pmda.go.jp/drugs/2010/P201000028/63015300_22200AMX00308_A100_1.pdf#page=9 Page: (PMDA) 9	yes

Tox targets

Target	Modality	Activity	Metabolite	Clinical evidence
hERG 1632	inhibitor 1613 Sources: https://www.scirp.org/html/4-9102442_80769.htm

Sourcing

Vendor/Aggregator	ID	URL
ChEBI	CHEBI:4702	https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:4702
MolPort	MolPort-005-941-739	https://www.molport.com/shop/molecule-link/MolPort-005-941-739
ZINC	ZINC000001530621	http://zinc15.docking.org/substances/ZINC000001530621
eMolecules	3715878	https://www.emolecules.com/cgi-bin/more?vid=3715878

PubMed

Title	Date	PubMed
Dorzolamide-induced immune thrombocytopenia: a case report and literature review.	2001 Apr	11316096
Comparison of topical brinzolamide 1% and dorzolamide 2% eye drops given twice daily in addition to timolol 0.5% in patients with primary open-angle glaucoma or ocular hypertension.	2001 Aug	11476685
Latanoprost versus combined therapy with timolol plus dorzolamide: IOP-lowering effect in open-angle glaucoma.	2001 Feb	11167277
Treatment of intraocular pressure elevation after photorefractive keratectomy.	2001 Jul	11489570
Effect of topical administration of 2% dorzlamide hydrochloride or 2% dorzlamide hydrochloride-0.5% timolol maleate on intraocular pressure in clinically normal horses.	2001 May	11341390
Comparisons of intraocular-pressure- lowering efficacy and side effects of 2% dorzolamide and 1% brinzolamide.	2001 May-Jun	11340389
[Innovative glaucoma therapy. Glaucoma therapy with topical carbonic anhydrase inhibitors].	2001 Oct	11699313
The pulsatile ocular blood flow behaviour in open angle glaucoma patients after replacing timolol therapy with timolol and dorzolamide fixed combination: preliminary study.	2002	12390145
Comparison of latanoprost, brimonidine and a fixed combination of timolol and dorzolamide on circadian intraocular pressure in patients with primary open-angle glaucoma and ocular hypertension.	2002	12390144
Effect of brimonidine on patients undergoing uncontrolled IOP with beta-blockers.	2002	12390143
[Weill-Marchesani syndrome. Late athalamia following antiglaucomatous surgery].	2002 Jul	12098811
Inhibitors of NHE-1 Na+/H+ exchange reduce mouse intraocular pressure.	2002 Jun	12036996
Additive intraocular pressure lowering effect of various medications with latanoprost.	2002 Jun	12036683
Dorzolamide X apraclonidine in the prevention of the intraocular pressure spike after Nd : YAG laser posterior capsulotomy.	2002 Oct	12658557
Experience with COSOPT, the fixed combination of timolol and dorzolamide, gained in Swiss ophthalmologists' offices.	2003	12740152
Comparison of the efficacy of the fixed-combination timolol/dorzolamide versus concomitant administration of timolol and dorzolamide.	2003 Apr	12804053
[Glaucoma: an ocular blood flow disorder?].	2003 Feb	12650170
New topical drugs for open-angle glaucoma.	2003 Feb	12630335
Readability of ocular medication inserts.	2003 Feb	12567112
Timolol 0.5%/dorzolamide 2% fixed combination vs timolol maleate 0.5% and unoprostone 0.15% given twice daily to patients with primary open-angle glaucoma or ocular hypertension.	2003 Feb	12566015
The effect of topical glaucoma medications evaluated by perimetry.	2003 Jun	12770987
The effects of dorzolamide on choroidal and retinal perfusion in non-exudative age related macular degeneration.	2003 Jun	12770975
Carbonic anhydrase inhibitors: inhibition of the tumor-associated isozyme IX with aromatic and heterocyclic sulfonamides.	2003 Mar 24	12643899
Influence of dorzolamide on corneal endothelium.	2003 Mar-Apr	12738544
[Therapy of normal tension glaucoma: effect of brinzolamide on ocular haemodynamics].	2003 May	12766822
Short-term effect of dorzolamide hydrochloride on central corneal thickness in humans with cornea guttata.	2003 May	12742838

Patents

Sample Use Guides

In Vivo Use Guide

Usual Adult Dose for Intraocular Hypertension One drop in the affected eye(s) three times a day Usual Adult Dose for Glaucoma (Open Angle) One drop in the affected eye(s) three times a day Applies to the following strength(s): 2%

Route of Administration: Topical

In Vitro Use Guide

Dorzolamide hydrochloride is a potent inhibitor of human CA isoenzyme II, with an IC50 value of 0.18 nM in vitro. In contrast, its inhibitory activity against human CA isozyme I is much weaker (IC50 value of 600 nM).

Substance Class	Chemical Created by `admin` on `Wed Jul 05 23:04:02 UTC 2023` Edited by `admin` on `Wed Jul 05 23:04:02 UTC 2023`
Record UNII	9JDX055TW1
Record Status	`Validated (UNII)`
Record Version

Download

Name

Type

Language

DORZOLAMIDE

Official Name

English

DORZOLAMIDE, TRANS-(-)-

Common Name

English

DORZOLAMIDE [VANDF]

Common Name

English

(4S,6S)-4-(ETHYLAMINO)-5,6-DIHYDRO-6-METHYL-4H-THIENO(2,3-B)THIOPYRAN-2-SULFONAMIDE 7,7-DIOXIDE

Systematic Name

English

DORZOLAMIDE [MI]

Common Name

English

Dorzolamide [WHO-DD]

Common Name

English

dorzolamide [INN]

Common Name

English

Classification Tree Code System Code

WHO-ATC

S01EC03