Atenolol

About Atenolol

This belongs to the group of medicines known as beta-blockers.

Atenolol can be used to treat high blood pressure, angina (chest pain) and irregular heartbeat. It has varied effects in different parts of the body.

High Blood Pressure and Angina: Atenolol works by slowing down the activity of the heart this decreases blood pressure and reduces the hearts need for oxygen which makes an angina attack less likely to occur.

Irregular Heartbeat: Normally the heartbeat is regulated by special tissues which conduct electricity. Some cases of irregular heartbeat are caused by these tissues conducting electricity too quickly. Atenolol works by reducing over-activity in the conducting tissue.

Atenolol is available in tablet, oral liquid and injection form.

It is also sometimes known as: Antipressan; Atenix; Tenormin; Tenormin LS. You may notice the use of any of these names on the packaging of your medicine.

Before taking Atenolol

Before taking Atenolol make sure your doctor or pharmacist knows:

• if you are pregnant, trying for a baby or breast-feeding
• if you suffer from liver or kidney problems
• if you suffer from low blood pressure or poor circulation
• if you suffer from asthma or breathing difficulties
• if you suffer from diabetes
• if you suffer from phaeochromocytoma (a tumour on the adrenal gland)
• if you suffer from psoriasis
• if you have ever had an allergic reaction to this or any other medicine
• if you are taking any other medicines, including those available to buy without a prescription, herbal and complementary medicines

How to take Atenolol

• Take your medication exactly as directed by your doctor.
• Always read the manufacturer's information leaflet, if possible, before beginning treatment.
• Do not stop taking this medicine without speaking to your doctor first.
• Try to take your medicine at the same times each day to avoid missing any doses.
• Never take more than the prescribed dose. If you suspect that you or someone else has taken an overdose of Atenolol contact your doctor or go to the accident and emergency department of your local hospital at once. Always take the container with you, if possible, even if empty.
• This medicine is for you. Never give it to others even if their condition appears to be the same as yours.

Getting the most from your treatment

• Before taking any 'over-the-counter' medicines, check with your pharmacist which medicines are safe for you to take alongside Atenolol.
• Keep your regular appointments with your doctor so your progress can be monitored.
• Before having any kind of surgery, including dental or emergency treatment, tell the doctor, dentist or surgeon that you are taking Atenolol.
• It is very important to follow any dietary advice that you may have been given by your doctor.
• If you have diabetes: Check your blood glucose levels regularly as this preparation can effect the levels of sugar in your blood.

Can Atenolol cause problems?

Along with their useful effects, all medicines can cause unwanted side effects, which usually improve as your body adjusts to the new medicine. Speak to your doctor or pharmacist if any of the following side effects continue or become troublesome:

Tiredness, coldness of the extremities (fingers, toes and nose), disturbed sleep, nightmares, shortness of breath, upset tummy, skin rashes, dry eyes, sexual problems, dry mouth, hair loss, pins and needles.

If you experience any other worrying side effects which you think may be due to this medicine, discuss them with your pharmacist.

How to store Atenolol

• Keep all medicines out of the reach of children.
• Store in a cool dry place, away from direct heat and light.
• Never keep out of date or unwanted medicines. Discard them safely out of the reach of children or take them to your local pharmacist who will dispose of them for you.

© EMIS and Cegedim Pharmacy Services Ltd 2005   Updated: 04/02/2005