Brimson Brimonidine Tartrate 0.2% Eye Drops 5mlBrimson Brimonidine Tartrate 0. 2% Eye Drops 5ml Prescription required. Brimson Eye Drops contain Brimonidine Tartrate 0. 2%, an alpha 2 adrenergic agonist used in the management of elevated intraocular pressure (IOP) associated with open angle glaucoma and ocular hypertension, under medical supervision. Active Ingredient Brimonidine Tartrate 0. 2% w v alpha 2 adrenergic agonist. Works by reducing aqueous humour production and increasing uveoscleral