timolol (generic name)

Beta-blockers reduce the workload on the heart and help it to beat more regularly
(TYE moe lole)
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What is this medicine?

TIMOLOL (TYE moe lole) is a beta-blocker. Beta-blockers reduce the workload on the heart and help it to beat more regularly. This medicine is used to treat high blood pressure. It may also be helpful after a heart attack and is used to prevent migraine headaches.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • chest pain or angina
  • diabetes
  • heart or vessel disease like slow heart rate, worsening heart failure, heart block, sick sinus syndrome or Raynaud's disease
  • kidney disease
  • liver disease
  • lung or breathing disease, like asthma or emphysema
  • pheochromocytoma
  • thyroid disease
  • an unusual or allergic reaction to timolol, other beta-blockers, medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. This medicine may be taken with or without food. Take your medicine at regular intervals. Do not take more medicine than directed. Do not stop taking except on the advice of your doctor or health care professional.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What may interact with this medicine?

Do not take this medicine with any of the following medications:
  • sotalol

This medicine may also interact with the following medications:

  • medicines for high blood pressure or heart failure
  • medicines to control heart rhythm
  • medicines used to treat allergic reactions like epinephrine
  • NSAIDs like ibuprofen

What should I watch for while using this medicine?

Visit your doctor or health care professional for regular check ups. Check your blood pressure and pulse rate regularly. Ask your health care professional what your blood pressure and pulse rate should be, and when you should contact him or her.

Do not stop taking this medicine suddenly. This could lead to serious heart-related effects.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this drug affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol can make you more drowsy and dizzy. Avoid alcoholic drinks.

This medicine can affect blood sugar levels. If you have diabetes, check with your doctor or health care professional before you change your diet or the dose of your diabetic medicine.

Do not treat yourself for coughs, colds, or pain while you are taking this medicine without asking your doctor or health care professional for advice. Some ingredients may increase your blood pressure.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • cold hands or feet
  • confusion, hallucinations
  • difficulty breathing, wheezing
  • difficulty sleeping, nightmares
  • dizziness or fainting spells
  • irregular heartbeat, palpitations, chest pain
  • skin rash, itching, peeling skin
  • slow heart rate
  • swelling of the legs or ankles
  • vomiting

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • change in sex drive or performance
  • dark colored skin
  • diarrhea
  • dry sore eyes
  • hair loss
  • nausea
  • weakness or tiredness

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Last Updated: September 03, 2009
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