<prompt> A patient came to the casualty with acute bronchial asthma after treatment of glaucoma. The probable drug is:TimololBetaxololLatanoprostAnticholiriesterase  <response>: Ref:KD Tripathi pharmacology 7th edition page.no: 145,152 KDT 6e p139 Timolol is a nonselective b blocker act on b1 b2 . b2 blocking effect of Timolol cause blockage of dilator b2 receptors. so it precipitates asthma. Other drugs used for glaucoma are- Betaxolol, a agonist ; Apraclonidine,Brimonidine PG analogue ; Latanoprost ,Bimatoprost, Carbonic anhydrase inhibitors ; acetazolamide ,Dorzolamide, Miotics; Pilocarpine 