Prescription onlyLower-cost generic available



Prescription onlyLower-cost generic available
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Lowers blood pressure and controls heart rate.

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Our bottom line

Tenormin (Atenolol) is good for controlling chest pain and treating heart failure and heart attack with fewer side effects than other beta blockers. You have to take it on an empty stomach, and you can't miss doses.

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  • A first-choice treatment to prevent chest pain (angina).
  • A first-choice treatment for heart failure and heart attack.
  • At lower doses, Atenolol has fewer side effects than most beta blockers because it targets the heart and doesn't cross into the brain and central nervous system.
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  • You have to take Atenolol on an empty stomach.
  • Taking a beta blocker might make you feel more tired or out of breath during exercise or normal daily routines. This gets better for most people, but for some might not go away.
  • Not a first-choice treatment for high blood pressure according to the latest guidelines, except if you have heart failure or heart disease. As a second choice, your doctor might add it to medicines you're already taking if your blood pressure is still too high.
  • You can't miss doses. Stopping Atenolol suddenly can cause your blood pressure to go up suddenly, which raises the risk of heart attack and stroke.
  • Can hide symptoms of low blood sugar if you're diabetic.

What to expect when you take Tenormin (Atenolol) for Lowers blood pressure

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Side effect rates for Tenormin (Atenolol)

806 From clinical trials of Atenolol / High blood pressure
  • Tiredness
  • Dizziness
  • Low mood disorder
  • Cold extremities
  • Fatigue
  • Shortness of breath
  • Positional low blood pressure
  • Light-headedness
  • Leg pain
  • Lack of energy

Risks and Warnings for Tenormin (Atenolol)

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    • Higher risk if:
    • Suddenly stopping Tenormin (Atenolol)

    Do not stop taking Tenormin (Atenolol) suddenly without consulting your doctor if you have coronary artery disease, as chest pain or angina may become increased or it may start a heart attack. Talk to your doctor if you are interested in stopping this medication.

    This is a black box warning. The FDA requires this warning when there is a significant risk of serious or life-threatening effects that anyone taking the drug should consider.

Means that some groups have a high risk of experiencing this side effect

Common concerns from people taking Tenormin (Atenolol)

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