This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti Adrenergic System, Subject name: Pharmacology
Antiglaucoma drug which acts by increasing uveo- sclerol outflow - 
Select and explain. 
A. Apraclonidine, B. Latanoprost, C. Timolol, D. Brinzolamide
B: Latanoprost
Answer: B: Latanoprost 
Explanation: Ans. is 'b' i.e., Latanoprost Drugs used in open-angle glaucoma MechanismMethods of AdministrationCholinomimetics Pilocarpine, carbachol, physostigmine, echothiophate, demecariumCiliary muscle contraction, opening of trabecular meshwork, increased outflowTopical drops of gel; plastic film slow-release insertAlpha agonists UnselectiveEpinephrine, dipivefrinIncreased outflowTopical dropsAlpha2-selectiveDecreased aqueous secretion ApraclonidineBrimonidine Topical, postlaser only TopicalBeta-blockers Timolol, betaxolol, carteolol, levobunolol, metipranololDecreased aqueous secretion from the ciliary epitheliumTopical dropsDiuretics Dorzolamide, brinzolamideDecreased aqueous secretion due to lack of HCO3TopicalAcetazolamide, dichlorphenamide, Methazolamide OralProstaglandins Lantanoprost, bimatoprost, travoprost, unoprostoneIncreased outflowTopical