Trusopt

Also known as dorzolamide, this is a glaucoma eye drop. This is a carbonic anhydrase inhibitor, which is effective but may be problematic if you have a sulfa allergy. Other medicines in this class of drugs include Azopt (brinzolamide) and the oral medication Diamox.  This medicine is also available as the combination drug Cosopt (containing both dorzolamide and timolol).