Timolol (patient information)

# IMPORTANT WARNING
Do not stop taking timolol without talking to your doctor first. If timolol is stopped suddenly, it may cause chest pain or heart attack in some people.

# Why this medication is prescribed
Timolol is used to treat high blood pressure. It also is used to prevent angina (chest pain) and heart attacks. It works by relaxing your blood vessels so your heart doesn't have to pump as hard. Timolol also is used to prevent migraine headaches.
This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

# How this medication should be used
Timolol comes as a tablet to take by mouth. It usually is taken one or two times a day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take timolol exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Timolol helps control your condition but will not cure it. Continue to take timolol even if you feel well. Do not stop taking timolol without talking to your doctor.

# Special precautions
Before taking timolol:
- tell your doctor and pharmacist if you are allergic to timolol or any other drugs.
- tell your doctor and pharmacist what prescription and nonprescription medications you are taking, especially aspirin and other nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen (Advil, Motrin) and naproxen (Aleve, Naprosyn), clonidine (Catapres), digoxin (Lanoxin), diltiazem (Cardizem, Dilacor, Tiazac), medications for glaucoma, nifedipine (Adalat, Procardia), other medications for heart disease or high blood pressure, quinidine (Quinidex, Quinaglute Dura-Tabs), reserpine (Serpalan, Serpasil), verapamil (Calan, Covera, Verelan), and vitamins.
- tell your doctor if you have or have ever had asthma or other lung disease; 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 drug may make you drowsy. Do not drive a car or operate machinery until you know how this drug affects you.
- remember that alcohol can add to the drowsiness caused by this drug.

# Special dietary instructions
Talk to your doctor before using salt substitutes containing potassium. If your doctor prescribes a low-salt or low-sodium diet, follow these directions carefully.

# What to do if you forget a dose
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.

# Side Effects

## Minor Side Effects
Timolol may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
- dizziness or lightheadedness
- excessive tiredness
- heartburn
- headache
- cold hands and feet

## Severe Side Effects
If you experience any of the following symptoms, call your doctor immediately:
- difficulty breathing
- swelling of the feet or hands
- unusual weight gain
- chest pain
- slow, irregular heartbeat
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online  or by phone .

# Storage conditions needed for this medication
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.

# In case of emergency/overdose
In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.

# Other information
Keep all appointments with your doctor and the laboratory. Your doctor will need to determine your response to timolol. Your doctor may ask you to check your pulse (heart rate). Ask your pharmacist or doctor to teach you how to take your pulse. If your pulse is faster or slower than it should be, call your doctor.
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.

# Brand names
- Blocadren
- Timolide