- A Visual Guide to Heart Disease
- Medical Illustrations of the Heart Image Collection
- Take the Heart Disease Quiz!
- Is timolol available as a generic drug?
- Do I need a prescription for timolol?
- What are the uses for timolol?
- What are the side effects of timolol?
- What is the dosage for timolol?
- Which drugs or supplements interact with timolol?
- Is timolol safe to take if I'm pregnant or breastfeeding?
- What else should I know about timolol?
What are the uses for timolol?
- Timolol is prescribed to lower blood pressure in patients with high blood pressure (hypertension).
- It also is used to reduce angina (heart pain), and to stabilize irregular heartbeats (arrhythmias) and prevent migraine headaches. Off label uses include the treatment of hypertrophic cardiomyopathy and mitral valve prolapse.
What are the side effects of timolol?
Minor side effects of timolol include:
Major side effects include:
Which drugs or supplements interact with timolol?
- The concurrent use of timolol and clonidine (Catapres), may cause rebound hypertension upon abrupt discontinuation of clonidine. It is advisable, therefore, to stop the beta adrenergic blocking drug by several days before gradually withdrawing clonidine.
- Fenoldopam (Corlopam), which is used for the treatment of severe hypertension should not be taken together with timolol as the combination may increase the risk of hypotension due to additive effects of the two drugs in lowering blood pressure.
- Close observation should be carried out when timolol is administered to patients receiving catecholamine-depleting drugs such as reserpine (Harmonyl) because of possible additive effects and the production of hypotension and/or a markedly slow heartbeat, which may produce dizziness, syncope, or postural hypotension (dizziness upon standing).
- Concurrent use of NSAIDs with timolol may cause the antihypertensive action of beta-blockers to be decreased. This occurs because prostaglandins are important in controlling blood pressure.
Is timolol safe to take if I'm pregnant or breastfeeding?
- There are no adequate studies in pregnant women. Timolol should be used during pregnancy only if the potential benefit justifies the potential risk.
- Timolol has been detected in human milk and has a potential for adverse events in infants.
What else should I know about timolol?
What preparations of timolol are available?
Tablets: 5, 10, and 20 mg.
How should I keep timolol stored?
Timolol should be stored at room temperature, 15 C - 30 C (59 F - 86 F) and kept in a tightly sealed container protected from light
Quick GuideHeart Disease: Symptoms, Signs, and Causes
Timolol (Blocadren and Timolide 10-25 brand names have been discontinued) is a first generation beta blocker drug. Timolol is prescribed for the treatment of high blood pressure, angina, heart attacks, and migraine headache prevention. Off label uses include treatment for cardiomyopathy and mitral valve prolapse. Side effects include:
Multimedia: Slideshows, Images & Quizzes
Sugar Quiz: Facts on Diet & Sugar
Sugar lurks in surprising places. Take the Sugar Quiz to learn of the many ways sugar sneaks into your diet and see what you know...
Protein Quiz: Foods High in Protein
Protein is a staple in our diets, but what happens if we get too much? Take this quiz to find out the truth about protein and...
High Blood Pressure (Hypertension) Quiz: Symptoms, Signs & Causes
Take this quiz and test your IQ of high blood pressure (hypertension), the cardiovascular disease that causes most strokes and...
Salt Quiz: Test Your Diet IQ
Do you love salt? Take the online Salt Quiz to get the facts about dietary salts and sodium in fruits, vegetables, processed...
Superfoods Quiz: List of Top Superfoods
Take our Superfoods Quiz! Get to know how unprocessed, raw, organic foods and healthy drinks are rich in nutrients and dietary...
Diet and Nutrition Quiz: Plans & Facts
Even if you think you're getting enough fruits and vegetables per day, how can you be sure? Take the Diet & Nutrition Quiz to...
Heart Disease Quiz: Test Your Medical IQ
Take our Heart Disease Quiz to get answers and facts about high cholesterol, atherosclerosis prevention, and the causes,...
Picture of Hypertension
High blood pressure, defined as a repeatedly elevated blood pressure exceeding 140 over 90 mmHg -- a systolic pressure above 140...
Picture of Glaucoma
Glaucoma (the sneak thief of sight) refers to certain eye diseases that affect the optic nerve and cause vision loss. See a...
Picture of Heart Detail
The heart is composed of specialized cardiac muscle, and it is four-chambered, with a right atrium and ventricle, and an...
Picture of Heart
The muscle that pumps blood received from veins into arteries throughout the body. See a picture of the Heart and learn more...
Heart Disease: Symptoms, Signs, and Causes
What is heart disease (coronary artery disease)? Learn about the causes of heart disease. Symptoms of heart disease include chest...
Diet for Stress Management: Carbs, Nuts, and Other Stress-Relief Foods
While there are many ways to cope with stress, one strategy is to eat stress-fighting foods. Find out which foods to eat as part...
Vegetarian Diet: Tasty, Basic Choices in Pictures
Thinking about becoming a vegetarian? Compared to the general population, the typical vegetarian has a lower body mass index...
12 Surprising Headache Triggers Tips
Painful headaches can ruin your productivity and quality of life. But what triggers headaches and migraines? Learn some...
Heart-Healthy Diet: 25 Foods to Protect Your Cardiovascular System
See 25 foods loaded with heart-healthy nutrients that help protect your cardiovascular system. Plus, find easy meal/recipes and...
Migraine or Headache? Migraine Symptoms, Triggers, Treatment
What does a migraine feel like? Discover the difference between headaches and migraines. Learn to spot migraine symptoms early,...
10 Worst Fast-Food Sandwiches: Unhealthy Choices in Pictures
Want to know what the good and bad fast-food sandwiches choices are? Our experts explore the nutrition facts of major restaurant...
Am I Having a Heart Attack? Symptoms of Heart Disease
Heart attacks symptoms vary greatly for men and women, from anxiety and fatigue to nausea and sweating. Learn the warning signs...
High Blood Pressure (Hypertension): Symptoms, Causes, Treatments
What causes high blood pressure (hypertension)? Know the warning signs and symptoms of high blood pressure. Read about high blood...
Easy, Tasty Grilled Foods for Dinner Tonight in Pictures
Explore easy and tasty grilled foods. When your rushed to get dinner on the table, fire up the grill and use these delicious,...
Migraine Headaches: 14 Non-Drug Treatments for Migraines
Learn about 14 non-drug treatments for migraines. Acupuncture, biofeedback and massage therapy are among this list of non-drug...
High-Fiber Super Foods: Whole Grains, Fruits, & More
Learn about high-fiber foods. From fresh fruits to whole grains, these fiber-rich foods can lower cholesterol, prevent...
13 Easy Ways to Eat More Greens
Learn 13 easy ways to add more greens to your diet. Discover how to add kale, spinach, broccoli rabe and more into your diet....
Pictures of Famous People Coping With Migraines
See how celebrities cope with the pain caused by migraines. Learn their methods used to prevent and relieve migraine pain....
12 Reasons to Love the Mediterranean Diet in Pictures
The Mediterranean diet is a delicious way to eat healthy. We show you how to get the most from this diet with foods like olive...
Food Swaps for Meals and Snacks for Heart Health in Pictures
Explore 10 food swaps for heart-wise dining. Learn what food to buy and how to cook in order to make a big difference for your...
Related Disease Conditions
Angina (Symptoms, Causes, Types, Diagnosis, and Treatment)
Angina is chest pain due to inadequate blood supply to the heart. Angina symptoms may include chest tightness, burning,...
High Blood Pressure (Hypertension) Signs, Causes, Diet, and Treatment
High blood pressure (hypertension) is a disease in which pressure within the arteries of the body is elevated. About 75 million...
A heart attack happens when a blood clot completely obstructs a coronary artery supplying blood to the heart muscle. A heart...
Migraine headache is a type of headache associated with a sensitivity to light, smells, or sounds, eye pain, severe pounding on...
Mitral Valve Prolapse (Syndrome, Symptoms, Causes, Treatment, Surgery)
Mitral valve prolapse (MVP), also called "click murmur syndrome" and "Barlow's syndrome," is the most common type of heart valve...
Restrictive cardiomyopathy, the rarest form of cardiomyopathy, is a condition in which the walls of the lower chambers of the...
An arrhythmia is an abnormal heart rhythm. With an arrhythmia, the heartbeats may be irregular or too slow (bradycardia), to...
Dilated Cardiomyopathy is a condition where the heart's ability to pump blood is decreased because the heart's main pumping...
Hypertrophic cardiomyopathy (HCM) affects many people today. Many people with HCM have no symptoms or only minor symptoms, and...
Heart Valve Disease
Heart valve disease occurs when the heart valves do not work the way they should. Symptoms of valve disease include shortness of...
How the Heart Works
The heart is a very important organ in the body. It is responsible for continuously pumping oxygen and nutrient-rich blood...
High Blood Pressure Treatment (Natural Home Remedies, Diet, Medications)
High blood pressure (hypertension) means high pressure (tension) in the arteries. Treatment for high blood pressure include...
Heart Attack Treatment
A heart attack involves damage or death of part of the heart muscle due to a blood clot. The aim of heart attack treatment is to...
Abnormal Heart Rhythms (Heart Rhythm Disorders)
Heart rhythm disorders vary from minor palpitations, premature atrial contractions (PACs), premature ventricular contractions...
Heart disease (coronary artery disease) occurs when plaque builds up in the coronary arteries, the vessels that supply blood to...
Heart Disease in Women
Heart disease in women has somewhat different symptoms, risk factors, and treatment compared to heart disease in men. Many women...
Heart Disease Treatment in Women
Heart disease treatment in women should take into account female-specific guidelines that were developed by the American Heart...
Atrial Fibrillation (AFib) Treatment Drugs
Atrial fibrillation (also called Afib or Afib) is heart rhythm disorder that causes irregular, and often, a rapid heartbeat. The...
Treatment & Diagnosis
- Diet & Nutrition FAQs
- Superfoods FAQs
- Sugar FAQs
- High Blood Pressure FAQs
- Heart Disease FAQs
- Salt FAQs
- Protein FAQs
- How To Reduce Your Medication Costs
- Pharmacy Visit, How To Get The Most Out of Your Visit
- Indications for Drugs: Approved vs. Non-approved
- Beta Blockers: Why Take a Beta Blocker?
- Drugs: Buying Prescription Drugs Online Safely
- Drugs: The Most Common Medication Errors
- Medication Disposal
- Dangers of Mixing Medications
- Generic Drugs, Are They as Good as Brand-Names?
Medications & Supplements
- nadolol (Corgard)
- propranolol, Inderal, Inderal LA, Innopran XL
- metoprolol (Lopressor, Toprol XL)
- Sectral (acebutolol)
- atenolol, Tenormin
- bisoprolol and hydrochlorothiazide, Ziac
- bisoprolol, Zebeta
- timolol ophthalmic solution (Timoptic, Timoptic-XE, Timoptic in Ocudose)
- Beta Blockers (Drug Class, List of Brand and Generic Names)
- Drugs: Questions to Ask Your Doctor or Pharmacist about Your Drugs
- Drug Interactions
- Beta Blocker Side Effects (Adverse Effects)
Prevention & Wellness
Healthy Heart Resources
Health Solutions From Our Sponsors
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.