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Betaxolol Hydrochloride - Brands
Betaxolol is a selective (beta-1-adrenergic) receptor blocking agent that does not have significant membrane stabilizing (local anesthetic) activity and is free from intrinsic sympathomimetic action. When instilled into the eye, Betaxolol reduces elevated as well as normal intraocular pressure, whether or not accompanied by glaucoma. Optic nerve head damage and visual field loss are results of a sustained elevated intraocular pressure and poor ocular perfusion. The ocular hypotensive action of Betaxolol appears to be mediated by a reduction of aqueous production as demonstrated by tonography and aqueous flurophotometry. Betaxolol ophthalmic solution does not produce miosis or accommodative spasm which is frequently seen with miotic.
The onset of action with Betaxolol can generally be noted within 30 minutes and the maximal effect can usually be detected two hours after topical administration. A single dose provides a 12-hour reduction in intraocular pressure (IOP) and twice daily administration maintains the IOP below 22 mm Hg in most patients.
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