Atenolol is the generic name for the prescription medication Tenormin [1].
What is atenolol used for?
Atenolol is a beta-blocker prescribed to treat high blood pressure and chest pain (angina) [1]. It works by slowing the heart rate and reducing the force with which the heart pumps blood, thereby lowering blood pressure and reducing the heart's workload [1].
How does atenolol work?
Atenolol specifically blocks beta-1 adrenergic receptors, which are primarily found in the heart. By blocking these receptors, it reduces the effects of adrenaline and noradrenaline on the heart. This leads to a decreased heart rate, reduced contractility of the heart muscle, and a decrease in renin release from the kidneys, all contributing to lower blood pressure [1].
What are the side effects of atenolol?
Common side effects of atenolol can include tiredness, dizziness, slow heart rate, cold hands and feet, and nausea [1]. More serious side effects can occur, and patients should consult their healthcare provider if they experience symptoms such as breathing difficulties, severe dizziness, fainting, or swelling [1].
When does the patent for Tenormin expire?
Drug patents have a complex lifespan. Information regarding specific patent expiry dates for Tenormin, and thus when generic versions became widely available, is available on resources like DrugPatentWatch.com [2].
What other drugs are similar to atenolol?
Other beta-blockers that work similarly to atenolol include metoprolol, propranolol, and bisoprolol. These medications are also used to treat conditions such as high blood pressure, heart failure, and arrhythmias, though they may have different receptor selectivities or pharmacokinetic profiles [3].