Table 2.

Common glaucoma preparations available in preserved formulation

Preserved drops
Medication	Brand name	Drug concentration	Preservative	Preservative concentration
Prostaglandin analogues
Latanoprost	Xalatan	50 µg/mL	Benzalkonium chloride	0.02%
Bimatoprost	Lumigan	100 and 300 µg/mL	Benzalkonium chloride	0.02%
Travoprost	Travatan	40 µg/mL	Polyquad	0.01%
Beta blockers
Timolol	Timolol and Timolol LA	2.5 and 5 mg/mL,	Benzalkonium chloride	0.01%
Levobunolol	Betagan	5 mg/mL	Benzalkonium chloride	0.004%
Betaxolol	Betoptic	2.5 and 5 mg/mL	Benzalkonium chloride	0.01%
Alpha blockers
Brimonidine	Alphagan	2 mg/mL	Benzalkonium chloride	0.005%
Apraclonidine	Iopidine	5 and 10 mg/mL	Benzalkonium chloride, propylene glycol	0.01%
Carbonic anhydrase inhibitors
Brinzolamide	Azopt	10 mg/mL	Benzalkonium chloride, disodium edetate	0.01%
Dorzolamide	Trusopt	20 mg/mL	Benzalkonium chloride	0.0075%
Combinations
latanoprost 50 µg/mL, timolol 5 mg/mL	Xalacom		Benzalkonium chloride	0.02%
Lumigan 300 µg/mL, timolol 5 mg/mL	Ganfort		Benzalkonium chloride	0.05%
Travatan 40 µg, timolol 5 mg/mL	DuoTrav		Polyquad	0.01%
Brinzolamide 10 mg/mL, timolol 5 mg/mL	Azarga		Benzalkonium chloride	0.1%
Dorzolamide 20 mg/mL, timolol 5 mg/mL	Cosopt		Benzalkonium chloride	0.0075%
Brimonidine 2 mg/mL, Timolol 5 mg/mL	Combigan		Benzalkonium chloride	0.05%
Brimonidine tartrate 2 mg/mL, Brinzolamide 10 mg/mL	Simbrinza		Benzalkonium chloride	0.03%

Source: British National Formulary 2017.