What is Atenolol?
Tenormin (atenolol) is a beta-1 selective adrenergic receptor blocker used to treat high blood pressure, chest pain (angina), and certain heart rhythm disorders. It works by blocking the effects of epinephrine on beta receptors in the heart, reducing heart rate and cardiac output, resulting in decreased peripheral resistance and lower blood pressure. Atenolol is available in tablet form and can be taken once daily to manage hypertension or as needed for angina symptoms.
What is Atenolol used for?
Atenolol, commonly known as Tenormin, is a synthetic beta-1 selective adrenergic receptor blocker that belongs to the class of drugs called beta-blockers. It is primarily used in the management and treatment of hypertension (high blood pressure), coronary heart disease, myocardial infarction, angina pectoris, arrhythmias, migraine prophylaxis, anxiety disorders, and sometimes for the prevention of premature ventricular contractions (PVCs). Atenolol works by inhibiting the action of beta-1 receptors in the body, which leads to a decrease in heart rate and myocardial contractility.
As a beta-blocker, atenolol reduces sympathetic nervous system activity on the heart. This results in a significant decrease in cardiac output without causing substantial peripheral vasoconstriction. The reduction in heart rate contributes to lower systemic vascular resistance, resulting in decreased blood pressure and cardiac workload. Additionally, atenolol’s effects on reducing contractility also decrease myocardial oxygen demand, which can be beneficial for patients with angina or previous myocardial infarction.
Atenolol side effects
- Allergic reactions
- Asthenia (weakness)
- Back pain
- Bradycardia (slow heart rate)
- Cardiac failure
- Chest pain
- Congestive heart failure
- Confusion
- Depression
- Dizziness
- Headache
- Hypotension (low blood pressure)
- Increased blood urea nitrogen (BUN) levels
- Insomnia
- Lightheadedness
- Liver damage
- Memory loss
- Migraine headaches
- Nausea
- Palpitations
- Rash
- Shortness of breath
- Sinusitis
- Stomach upset
- Syncope (fainting)
- Tachycardia (fast heart rate) during withdrawal
- Thirst
- Upper respiratory tract infection
Disclaimer
The content on this website is for informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. The information provided here is based on general research and may not apply to individual circumstances. We do not guarantee the accuracy or completeness of any content on this website. Always consult with a healthcare professional before making any changes to your medication or health routine.