Tenormin

brand

Tenormin Side Effects

See also Warning and Precautions sections.

Dizziness, lightheadedness, tiredness, and nausea may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

To reduce the 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 you have any serious side effects, including: new or worsening symptoms of heart failure (such as shortness of breath, swelling ankles/feet, unusual tiredness, unusual/sudden weight gain), very slow heartbeat, severe dizziness, fainting, trouble breathing, blue fingers/toes, mental/mood changes (such as confusion, mood swings, depression).

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any of the following symptoms of a serious allergic reaction: 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.
  • purpura
  • thrombocytopenic disorder
  • agranulocytosis
  • acute confusion
  • mood changes
  • abnormal sexual function
  • depression
  • dry eye
  • sick sinus syndrome
  • bradycardia
  • cardiac arrhythmia
  • chronic heart failure
  • peripheral vasoconstriction
  • orthostatic hypotension
  • hypotension
  • sore throat
  • laryngismus
  • bronchospastic pulmonary disease
  • xerostomia
  • ischemic colitis
  • Peyronie's disease
  • erythema
  • psoriasiform eruption
  • alopecia
  • lupus-like syndrome
  • drowsy
  • memory impairment
  • hallucinations
  • vertigo
  • dizziness
  • fever
  • fatigue
  • skin rash
  • wheezing
  • dyspnea
  • nausea
  • diarrhea
  • abnormal hepatic function tests
  • lethargy
  • dream disorder
  • leg pain
  • mesenteric artery thrombosis

Drug Interactions

See also How To Use section.

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Some products that may interact with this drug include: dolasetron, fingolimod.

Some products have ingredients that could raise your heart rate or blood pressure or worsen your heart failure. 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).