Atenolol Tablets (Generic Tenormin)

by Europe

How to use and dosage

Atenolol (generic name Tenormin) is a prescription medication used to lower high blood pressure (hypertension). It can also be prescribed to treat chest pain (angina) and to improve survival following a heart attack. It can be used with or without other drugs as prescribed by a medical physician. It belongs to a class of medicines known as beta-blockers and aids in the prevention of strokes, heart attacks, and kidney problems.

This pharmaceutical comes in the form of a tablet to be taken orally. It comes in strengths of 25 mg, 50mg, or 100mg. Follow directions from your physician regarding dosage.

Atenolol (Tenormin) is intended for long-term treatment. It can have serious risks if not taken as prescribed. Do not stop taking this medication abruptly.

The strength of the medication prescribed to you will depend on your age and the condition being treated. Take only as directed by your physician. If you miss a dose, take it as soon as possible. If it is a time for your next treatment, only make the next dose - do not double the dose, skip the one missed and go back to your regular schedule.

Store your Atenolol in a closed container at room temperature, away from heat, moisture and direct light. Do not freeze. Keep out of reach of children.

Side Effects

Most side effects reported have been mild and last only a short time. Contact your doctor if the following common side effects persist or worsen while taking Atenolol (Tenormin):

  • Dizziness, lightheadedness, tiredness, and nausea.
  • Slow heart rate (<60 beats per minute); abnormally low blood pressure.
  • Face, fingers, lower legs or feet swell.
  • Cold hands or feet.
  • Difficult or labored breathing; shortness of breath.
  • Tightness in the chest; sweating; wheezing.

Less common side effects reported, which should also be said, include:

  • Anxiety, coma, cool or pale skin, depression, dilated neck veins.
  • A headache increased hunger, nervousness, nightmares, seizures.
  • Shakiness, slurred speech.


See your doctor regularly to assure Atenolol is working correctly and discuss any side effects.

Do not stop taking this medication. Ischemic heart disease (meaning the heart is not getting enough blood and oxygen) may be exacerbated after abrupt withdrawal. Your doctor may wean you off Atenolol gradually, if necessary.

Using this drug while pregnant can damage a fetus. When taking Atenolol, use the active birth control to prevent becoming pregnant. Should you become pregnant while taking this pharmaceutical, inform your physician immediately.

Make sure any other health professional, including any dentist, is aware you take Atenolol. It is often necessary to stop taking it several days before any surgery.

Atenolol can affect blood sugar levels or disguise symptoms of low blood sugar. Discuss any changes in blood or sugar tests done at home with your doctor.

You may become less alert or drowsy taking Atenolol. Should this occur, do not attempt to drive a vehicle, operate machinery, etc., when you are not sufficiently alert.


Always make sure your doctor and pharmacist are aware of all medications you take, even over-the-counter drugs and supplements. Keep a list of all your medicines with you to share with healthcare professionals as needed.

Atenolol Tablets (Generic Tenormin)

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