Medical Definition of brimonidine
: an alpha-blocker C11H10BrN5·C4H6O6 used in a topical ophthalmic solution to reduce intraocular pressure (as in the treatment of open-angle glaucoma) or in a topical gel applied to the skin to reduce redness associated with rosacea ◆Trademarks for preparations containing brimonidine include Alphagan, Combigan, and Mirvaso.
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