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Timolol (Ophthalmic)
What is it? Overview Usage Side Effects and Warnings

Timolol (Ophthalmic) Overview

Written by FoundHealth.

(TIM oh lol)

U.S. Brand Names

Betimol®; Istalol®; Timolol GFS; Timoptic-XE®; Timoptic®; Timoptic® in OcuDose®

Canadian Brand Names

Apo-Timop®; Dom-Timolol; Med-Timolol; Mylan-Timolol; PMS-Timolol; Rhoxal-Timolol; Sandoz-Timolol; Tim-AK; Timoptic-XE®; Timoptic®

Pharmacologic Category

Beta-Adrenergic Blocker, Nonselective; Ophthalmic Agent, Antiglaucoma

Reasons not to take this medicine

• If you have an allergy to timolol or any other part of this medicine.

• Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other symptoms involved.

• If you have any of the following conditions: Asthma, severely weakened heart, or slow heartbeat without a working pacemaker.

• If you are more than 12 weeks pregnant.

How does it work?

• Timolol lowers pressure in the eye.

How is it best taken?

• For the eye only.

• Take out contact lenses before using medicine. Lenses can be replaced 15 minutes after medicine is given. Do not put contacts back in if eyes are irritated or infected.

• Do not touch the container tip to the eye, lid, or other skin.


• Tilt head back and drop medicine into eye.

• After using medicine, keep your eyes closed. Apply pressure to the inside corner of the eye. Do this for 3-5 minutes. This keeps the medicine in your eye.

• Separate each eye medicine by 5 minutes.


• Turn container upside down and shake once before each use.

• Use other eye medicines 10 minutes before the gel.

What do I do if I miss a dose? (does not apply to patients in the hospital)

• Use a missed dose as soon as possible.

• If it is almost time for the next dose, skip the missed dose and return to your regular schedule.

What should I monitor?

• Change in condition being treated. Is it better, worse, or about the same?

• Have a yearly eye exam.

• Have eye pressure checked regularly. Talk with healthcare provider.

• Follow up with healthcare provider.

How should I store this medicine?

• Store at room temperature. Do not freeze.

General statements

• If you have a life-threatening allergy, wear allergy identification at all times.

• Do not share your medicine with others and do not take anyone else's medicine.

• Keep all medicine out of the reach of children and pets.

• Most medicines can be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.

• Keep a list of all your medicines (prescription, natural products, supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, nurse practitioner, pharmacist, physician assistant).

• Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or in Canada to Health Canada's Canada Vigilance Program at 1-866-234-2345.

• Talk with healthcare provider before starting any new medicine, including over-the-counter, natural products, or vitamins.

Created: 2009-12-22 14:37:25.0

Modified: 2010-03-23 10:17:37.0

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