<prompt> The alpha 2 agonist used in glaucoma isGuanacareGuanabenzBrimonidineTizanidine  <response>: Ref: KD Tripathi pharmacology 7th edition page.no: 153 a2 agonist used for glaucoma is Brimonidine, Apraclonidine. Drugs used for glaucoma - b blocker; Timolol,Betaxolol PG analogue ; Latanoprost ,Bimatoprost Carbonic anhydrase inhibitors ; acetazolamide ,Dorzolamide Miotics; Pilocarpine 