Brimonidine is a medicinal compound that belongs to the class of alpha-2 adrenergic receptor agonists. It works by reducing the production of aqueous humor and increasing its outflow, which helps lower pressure inside the eye. Brimonidine is primarily used in the treatment of glaucoma and ocular hypertension to prevent damage to the optic nerve. It is commonly formulated as ophthalmic eye drops for local application. In addition to eye care, brimonidine is also used topically in dermatology to reduce facial redness associated with rosacea. Overall, brimonidine is an important therapeutic agent for managing conditions related to elevated intraocular pressure and vascular dilation.