Product Name

Brinzolamide

CAS Number

138890-62-7

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Product Name:
Brinzolamide
CAS Number:
138890-62-7
Indication:
For the treatment of elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma.
Mode of Action:

Brinzolamide is a highly specific inhibitor of CA-II, which is the main CA isoenzyme involved in the secretion of aqueous humor. Inhibition of CA in the ciliary process of the eye slows the formation of bicarbonate, and reduces sodium and fluid transport. This results in a reduction in the rate of aqueous humor secretion and the intraocular pressure. Brinzolamide is absorbed systemically following topical ocular administration. Since it has a high affinity for CA-II, brinzolamide binds extensively to red blood cells, where CA-II is primarily found. As sufficient CA-II activity remains, adverse effects resulting from the systemic inhibition of CA by brinzolamide are not observed. The metabolite N-desethyl brinzolamide is also formed. This metabolite binds to CA and accumulates in red blood cells as well. In the presence of brinzolamide, the metabolite binds mainly to carbonic anhydrase I (CA-I).

Pharmacodynamics:

Used in the treatment of glaucoma, brinzolamide inhibits aqueous humor formation and reduces elevated intraocular pressure. Elevated intraocular pressure is a major risk factor in the pathogenesis of optic nerve damage and glaucomatous visual field loss. Brinzolamide can decrease intraocular pressure by approximately 16-19% in patients with elevated intraocular pressure.

Metabolism:

Ophthalmic

IUPAC:
(4R)-4-(ethylamino)-2-(3-methoxypropyl)-1, 1-dioxo-2H, 3H, 4H-1$l, {6}, 7, 2-thieno[3, 2-e][1$l, {6}, 2]thiazine-6-sulfonamide
ATC:
S01EC04
PubChem:
68844
DrugBank:
DB01194 (APRD00475)
Formula:
C12-H21-N3-O5-S3
Molecular Mass:
383.512
Synonyms:
(R)-4-(Ethylamino)-3,4-dihydro-2-(3-methoxypropyl)-2H-thieno(3,2-e)-1,2-thiazine-6-sulfonamide 1,1-dioxide, 2H-Thieno(3,2-e)-1,2-thiazine-6-sulfonamide, 4-(ethylamino)-3,4-dihydro-2-(3-methoxypropyl)-, 1,1-dioxide, (R)-, AL 4862, AL-4862, Azopt, Brinzolamide, UNII-9451Z89515
SMILES:
C1[N@@](CCCOC)S(=O)(=O)c2sc(cc2[C@H]1NCC)S(N)(=O)=O
AHFS Code:
52:10.0
InChi:
1S/C12H21N3O5S3/c1-3-14-10-8-15(5-4-6-20-2)23(18,19)12-9(10)7-11(21-12)22(13,16)17/h7,10,14H,3-6,8H2,1-2H3,(H2,13,16,17)/t10-/m0/s1 Download
General Reference:
General Reference:

 

  1. Ermis SS, Ozturk F, Inan UU: Comparing the effects of travoprost and brinzolamide on intraocular pressure after phacoemulsification. Eye. 2005 Mar;19(3):303-7. Pubmed
  2. Iester M, Altieri M, Michelson G, Vittone P, Traverso CE, Calabria G: Retinal peripapillary blood flow before and after topical brinzolamide. Ophthalmologica. 2004 Nov-Dec;218(6):390-6. Pubmed
  3. Kaup M, Plange N, Niegel M, Remky A, Arend O: Effects of brinzolamide on ocular haemodynamics in healthy volunteers. Br J Ophthalmol. 2004 Feb;88(2):257-62. Pubmed
  4. Iester M: Brinzolamide ophthalmic suspension: a review of its pharmacology and use in the treatment of open angle glaucoma and ocular hypertension. Clin Ophthalmol. 2008 Sep;2(3):517-23. Pubmed
  5. DeSantis L: Preclinical overview of brinzolamide. Surv Ophthalmol. 2000 Jan;44 Suppl 2:S119-29. Pubmed

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