<prompt> Which of the following antiglaucoma medications can cause drowsiness ?LatanoprostTimololBrimonidineDorzolamide  <response>: Ans. is c i.e., Brimonidine o The main side effects of brimonidine are dry mouth, sedation drowsiness and small fall in in BP. o Simple funda to solve this question is that all oc, agonists clonidine, brimonidine have central action -- all ot2 agonists can cause sedation, mental depression, disturbed sleep. 