Atenolol is a beta-blocker medication used to treat high blood pressure and angina (chest pain) [1]. It works by slowing the heart rate and reducing the force of contractions, which lowers blood pressure [1].
What other conditions is atenolol prescribed for?
In addition to hypertension and angina, atenolol may be used to prevent heart attacks in patients who have had a heart attack or have ongoing chest pain [1]. It is also sometimes prescribed to manage irregular heart rhythms [1].
How does atenolol work in the body?
Atenolol belongs to a class of drugs called beta-adrenergic blocking agents [1]. It selectively blocks beta-1 adrenergic receptors, which are primarily found in the heart muscle [1]. By blocking these receptors, atenolol reduces the effects of adrenaline on the heart, leading to a decrease in heart rate, blood pressure, and the heart's workload [1].
What are the common side effects of atenolol?
Common side effects associated with atenolol use include fatigue, dizziness, slow heart rate, and cold hands and feet [1]. Less common side effects can involve gastrointestinal issues, such as nausea or diarrhea, and breathing difficulties in individuals with a history of asthma or lung problems [1].
When does patent protection for atenolol expire?
Atenolol has been available for many years, and its original patents have long since expired [2]. This means that generic versions of atenolol are widely available [2].
Are there different formulations or strengths of atenolol?
Atenolol is available in oral tablet form, typically in strengths of 25 mg, 50 mg, and 100 mg [1]. It can also be administered intravenously in a clinical setting [1].
What is the difference between atenolol and other beta-blockers?
Atenolol is a cardioselective beta-blocker, meaning it primarily affects beta-1 receptors in the heart [1]. Other beta-blockers may be non-selective, affecting both beta-1 and beta-2 receptors, which can lead to different side effect profiles, such as bronchoconstriction in individuals with respiratory conditions [1]. The choice of beta-blocker depends on the patient's specific medical condition and other existing health issues [1].