- 盐酸多佐胺；L671152 hydrochloride；MK507 hydrochloride
Dorzolamide Hydrochloride is the hydrochloride salt form of dorzolamide, an inhibitor of carbonic anhydrase, a zinc-containing enzyme that catalyzes the rapid conversion of carbon dioxide and water into carbonic acid, protons and bicarbonate ions. Distributed throughout many cells and tissues, various carbonic anhydrases play important roles in mineral and metabolic homeostasis.
Store at -20℃ for one year（Powder）；Store at 2-4℃ for two weeks；Store at -20℃ for six months after dissolution.
盐酸多佐胺；L671152 hydrochloride；MK507 hydrochloride
Water : 12 mg/mL (33.3 mM)
Carbonic anhydrase II,Carbonic anhydrase IV,Carbonic anhydrase I
Dorzolamide is a powerful inhibitor of carbonic anhydrase (CA) II that penetrates the sclera and cornea to reach the ciliary process and lowers formation of HCO3 and aqueous humor. Dorzolamide causes a vasodilatation of retinal arteries, pre-contracted by three different mechanisms by direct action and presumably independent of changes in extracellular pH.
Dorzolamide, administered twice and three times daily, significantly decreases intraocular pressure (IOP) in glaucomatous dogs on the first day (twice daily 7.6 mmHg, and three times daily 16.4 mmHg) that is even greater by day 5 (twice daily 10.4 mmHg, and three times daily 13.9 mmHg). Dorzolamide (instilled in the drug eye for day 1 through to day 5) combined with oral methazolamide (administered from day 3 through to day 5) significantly lowers IOP in the eye on day 1, for day 3 and for all of day 5 for both eyes. Dorzolamide (2%) instilled three times daily produces similar IOP declines compared to the combination of oral methazolamide and 2% dorzolamide administered twice daily. Dorzolamide hydrochloride induces a very large IOP reduction and is found to be also well effective at night in rabbit. Dorzolamide maximally lowers the intraocular pressure (IOP) of glaucomatous monkeys by 22%, 30% and 37%, respectively.
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