brimonidine alpha2-adrenergic drug molecule. used in treatment of open-angle glaucoma, ocular hypertension and rosacea

brimonidine brimonidin glaucoma ocular hypertension gel rosacea facial erythema vasoconstriction alpha a2 adrenergic agonist hydrogen carbon nitrogen bromine eye ophthalmology dermatology redness skin cheek molecule atoms atomic model molecular compound composition chemical chemistry bond structure formula circle ring line drawing skeletal