What is dorzolamide and timolol ophthalmic?
Dorzolamide ophthalmic reduces the amount of fluid in the eye, which decreases pressure inside the eye. Timolol ophthalmic is a beta-blocker that also reduces pressure inside the eye. The combination of dorzolamide and timolol ophthalmic is used to treat certain types of glaucoma and other causes of high pressure inside the eye. Dorzolamide and timolol ophthalmic may also be used for other purposes not listed in this medication guide.