Separate and combined drug therapy both work to lower IOP

November 15, 2002

Los Angeles-A randomized, controlled trial comparing the combination therapy dorzolamide-timolol (Cosopt, Merck) with concomitant administration of 2% dorzolamide (Trusopt, Merck) and 0.5% timolol showed that the IOP lowering is equally effective if the drugs are given either in combination or individually.