Timolol is a beta-blocker that also reduces pressure inside the eye.

Timolol ophthalmic (for the eyes) is used to treat open-angle glaucoma and other causes of high pressure inside the eye.

Timolol ophthalmic may also be used for other purposes not listed in this medication guide.

Do not allow the dropper to touch any surface, including the eyes or hands. If the dropper becomes contaminated it could cause an infection in your eye, which can lead to vision loss or serious damage to the eye.

Do not use any other eye medication unless your doctor has prescribed it for you. If you use another eye medication, use it at least 10 minutes before or after using timolol ophthalmic. Do not use the medications at the same time.

Timolol ophthalmic can cause blurred vision. Be careful if you drive or do anything that requires you to be able to see clearly.

Do not use this medication if you are allergic to timolol, or if you have:

• asthma or severe chronic obstructive pulmonary disease (COPD);

• certain serious heart conditions, especially "AV block"; or

• severe or uncontrolled congestive heart failure.

If you have any of these other conditions, you may need a dose adjustment or special tests to safely use this medication:

• breathing problems such as bronchitis or emphysema;

• a history of heart disease or congestive heart failure;

• diabetes;

• history of stroke, blood clot, or circulation problems;

• a thyroid disorder;

• a muscle disorder such as myasthenia gravis;

• kidney disease; or

• liver disease.

FDA pregnancy category C. It is not known whether timolol ophthalmic is harmful to an unborn baby. Before using this medication, tell your doctor if you are pregnant or plan to become pregnant during treatment.

Timolol ophthalmic passes into breast milk and could cause harm to a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

Do not use this medicine for a child younger than 2 years old.