Table 1.

Preservatives contained in glaucoma medications

Preservatives	Glaucoma medications
Benzalkonium chloride	Latanoprost, tafluprost, bimatoprost, isopropyl unoprostone, betaxolol, brinzolamide, dorzolamide, carteolol, timolol, bunazosin, levobunolol, nipradilol, brinzolamide/timolol fixed combination, latanoprost/timolol fixed combination, dorzolamide/timolol fixed combination, brimonidine/timolol fixed combination
Chlorobutanol benzalkonium chloride	Dipivefrine
Sodium chlorite	Brimonidine
Boric acid + D-sorbitol + zinc chloride (SofZia®)	Travoprost
Polidronium chloride	Travoprost/timolol fixed combination
Chlorobutanol	Pilocarpine

Notes: SofZia^®; Alcon Laboratories, Inc., Fort Worth, TX, USA.