Drug action/class	Agent	Strength (%)	Unit size	Dosing interval	Pregnancy category*	Cost (generic)†
Decrease aqueous production: beta blockers, nonspecific	Levobunolol (Betagan Liquifilm)	0.250	10 mL	Twice a day	C	$ 48.50 (27.00)
	Levobunolol	0.500	5 mL	Once or twice a day	C	29.50 (9.50)
	Carteolol (Ocupress)	1.000	10 mL	Twice a day	C	56.00 (37.00)
	Metipranolol (Optipranolol)	0.300	10 mL	Twice a day	C	30.00 (27.00)
	Timolol maleate (Timoptic)	0.250	10 mL	Twice a day	C	36.00 (11.00)
	Timolol maleate	0.500	10 mL	Twice a day	C	43.00 (12.00)
	Timolol maleate (XE: solution or gel)	0.250	5 mL	Once a day	C	29.00 (26.00)
	Timolol maleate (XE: solution or gel)	0.500	5 mL	Once a day	C	34.50 (31.00)
Decrease aqueous production: beta blockers, relatively specific	Betaxolol (Betoptic)	0.500	10 mL	Twice a day	C	58.00 (NA)
Decrease aqueous production: carbonic anhydrase inhibitors	Dorzolamide (Trusopt)	2.000	10 mL	Three times a day	C	54.00 (NA)
	Brinzolamide (Azopt)	1.000	10 mL	Three times a day	C	53.00 (NA)
Decrease aqueous production, may increase outflow: alpha agonists	Apraclonidine (Iopidine)	0.500	5 mL	Three times a day	C	57.50 (NA)
	Apraclonidine	1.000	24 0.1-mL unit-dose packets	Three times a day	C	229.00 (NA)
	Brimonidine tartrate (Alphagan)	0.200	10 mL	Three times a day	B	72.50 (NA)
	Brimonidine tartrate (purite preserved; Alphagan P)	0.150	15 mL	Three times a day	B	95.00 (NA)
Increase aqueous outflow: prostaglandin analogs	Latanoprost (Xalatan)	0.005	2.5 mL	Once a day	C	50.00 (NA)
	Bimatoprost (Lumigan)	0.030	5 mL	Once a day	C	100.00 (NA)
	Travoprost (Travatan)	0.004	2.5 mL	Once a day	C	45.50 (NA)
	Unoprostone (Rescula)	0.150	5 mL	Twice a day	C	47.00 (NA)
Increase aqueous outflow: parasympathomimetic	Pilocarpine (Pilocar)	1.000	15 mL	Three to four times a day	C	5.00 (3.50)
	Pilocarpine (Pilocar)	2.000	15 mL	Three to four times a day	C	7.00 (4.50)
Increase aqueous outflow: sympathomimetic	Dipivefrin (Propine)	0.100	10 mL	Twice a day	B	45.50 (10.00)
Combination medications	Dorzolamide and timolol maleate (Cosopt)	2/0.5	10 mL	Twice a day	C	92.00 (NA)