All of the following agents are used in glaucoma treatment, except: (A) Apraclonidine, (B) Timolol, (C) Pilocarpine, (D) Metoprolol
Answer is D. Ref:KD Tripathi 7th edition (page.no: 127,144,153) Katzung 10/e p103 metoprolol is b1 selective blocker, so it can't be used for glaucoma. b2 receptor is present in the eye. so drugs acting on beta 2 should be given. Other drugs used for glaucoma are- b blocker- Timolol,Betaxolol, a agonist ; Apraclonidine,Brimonidine, PG analogue ; Latanoprost ,Bimatoprost, Carbonic anhydrase inhibitors ; acetazolamide ,Dorzolamide, Miotics; Pilocarpine