TIMOLOL MALEATE

generic for ISTALOL

Timolol Maleate Side Effects

See also Warning and Precautions sections.

Tiredness, slow heartbeat, and dizziness may occur. Decreased sexual ability has been reported rarely. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

To lower your risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.

This drug may reduce blood flow to your hands and feet, causing them to feel cold. Smoking may worsen this effect. Dress warmly and avoid tobacco use.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor right away if any of these unlikely but serious side effects occur: very slow heartbeat, severe dizziness, fainting, blue fingers/toes, trouble breathing, new or worsening symptoms of heart failure (such as shortness of breath, swelling ankles/feet, unusual tiredness, unusual/sudden weight gain), mental/mood changes (such as confusion, mood swings, depression).

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
  • thrombocytopenic disorder
  • leukopenia
  • acute confusion
  • abnormal sexual function
  • nightmares
  • depression
  • dry eye
  • ocular irritation
  • cardiac arrhythmia
  • chronic heart failure
  • peripheral vasoconstriction
  • orthostatic hypotension
  • nasal congestion
  • bronchospastic pulmonary disease
  • constipation
  • psoriasiform eruption
  • pruritus of skin
  • arthralgia
  • back pain
  • drowsy
  • hallucinations
  • dizziness
  • insomnia
  • fatigue
  • dysgeusia
  • chest pain
  • nausea
  • vomiting
  • diarrhea
  • abdominal pain with cramps
  • nervousness
  • general weakness
  • symptoms of anxiety
  • mesenteric artery thrombosis

Drug Interactions

See also Precautions section.

Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.

Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: fingolimod, drugs affecting liver enzymes that remove timolol from your body (such as quinidine, SSRI antidepressants such as fluoxetine).

Some products have ingredients that could raise your heart rate or blood pressure. Tell your pharmacist what products you are using, and ask how to use them safely (especially cough-and-cold products, diet aids, or NSAIDs such as ibuprofen/naproxen).

This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.
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