Before taking timolol,
tell your doctor and pharmacist if you are allergic to timolol, any other medications, or any of the ingredients in timolol tablets. Ask your pharmacist for a list of the ingredients.
tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking. Be sure to mention any of the following: aspirin and other nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen (Advil, Motrin) and naproxen (Aleve, Naprosyn), clonidine (Catapres, Kapvay, in Clorpres), digoxin (Lanoxin), diltiazem (Cardizem, Cartia XT, Dilacor, Tiazac, others), medications for glaucoma, nifedipine (Adalat, Afeditab CR, Procardia), other medications for heart disease or high blood pressure, quinidine, reserpine , and verapamil (Calan, Covera, Verelan).
tell your doctor if you have or have ever had asthma or other lung diseases; heart, liver, or kidney disease; diabetes; severe allergies; muscle disease; or thyroid problems.
tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking timolol, call your doctor.
if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking timolol.
you should know that this medication may make you drowsy. Do not drive a car or operate machinery until you know how this medication affects you.
remember that alcohol can add to the drowsiness caused by this medication.