Atenolol
Hypertension, Supraventricular Tachycardia ... show more
.svg)
Drug Status
Government Approvals
US(FDA), UK(BNF)
WHO Essential Medicine
YES
Known Teratogen
Possible
Pharmaceutical Class
Beta-Adrenergic Blocker
Controlled Drug Substance
NO
Atenolol
Learn more about this medicine -
Click HereSummary
Atenolol is a medicine used to lower blood pressure, reducing the risk of serious heart problems like strokes and heart attacks. It also helps manage chest pain, known as angina, and can be used after a heart attack to improve survival chances.
Atenolol works by blocking the effects of stress hormones on the heart and blood vessels. This slows the heartbeat and reduces the force of contractions, making the heart work easier. This in turn helps lower blood pressure and manage chest pain.
For most adults, the usual first dose of Atenolol is 50 milligrams once a day. The doctor might increase it to 100 milligrams if needed. Older adults or people with kidney problems may start with a lower dose of 25 milligrams.
Atenolol can make you feel tired, sleepy, dizzy or nauseous. Less common but more serious side effects can affect your heart rate, blood pressure and breathing. It can also cause serious allergic reactions or mental health problems in rare cases.
Atenolol shouldn't be used if you have a slow heartbeat, certain heart blockages, a serious heart problem called cardiogenic shock, severe heart failure, or an allergy to it. Stopping it suddenly can make your heart problems worse or even cause a heart attack. It should also be avoided if you have lung problems like asthma.
Indications and Purpose
What is Atenolol used for?
Atenolol is indicated for the treatment of high blood pressure (hypertension), angina pectoris (chest pain due to coronary artery disease), and to improve survival after a heart attack. It may also be used for other conditions such as irregular heartbeat, heart failure, and to prevent migraine headaches, as determined by a healthcare provider.
How does Atenolol work?
Atenolol is a beta-blocker that works by blocking beta-adrenergic receptors in the heart. This action reduces heart rate and the force of heart contractions, leading to decreased blood pressure and improved blood flow. By reducing the heart's workload, Atenolol helps prevent angina and improves survival after a heart attack.
Is Atenolol effective?
Atenolol is a beta-blocker that effectively lowers blood pressure, reduces the frequency of angina attacks, and improves survival after a heart attack. Clinical trials have demonstrated its efficacy in reducing cardiovascular events, such as heart attacks and strokes, by lowering blood pressure and heart rate. It is widely used and considered effective for these conditions.
How does one know if Atenolol is working?
The benefit of Atenolol is evaluated by regularly monitoring blood pressure and heart rate to ensure the medication is effectively managing the condition. Patients should keep all appointments with their healthcare provider, who may also check for any side effects or adverse reactions. Adjustments to the dosage may be made based on these evaluations.
Directions for Use
What is the usual dose of Atenolol?
For adults, the usual starting dose of Atenolol for hypertension is 50 mg once daily, which may be increased to 100 mg if needed. For angina, the dose is typically 50 mg to 100 mg once daily. Atenolol is not recommended for use in children as its safety and effectiveness have not been established in pediatric patients.
How do I take Atenolol?
Atenolol can be taken with or without food, usually once daily. It is important to take it at the same time each day to maintain consistent blood levels. There are no specific food restrictions, but it is advisable to follow a healthy diet low in salt and fat to help manage blood pressure. Always follow your healthcare provider's instructions.
For how long do I take Atenolol?
Atenolol is typically used as a long-term treatment for conditions like hypertension, angina, and after a heart attack. The duration of use depends on the individual's medical condition and response to treatment. It is important to continue taking Atenolol as prescribed by a healthcare provider, even if symptoms improve, and not to stop abruptly without consulting a doctor.
How long does it take for Atenolol to start working?
Atenolol begins to work within a few hours of taking a dose, but it may take 1 to 2 weeks to feel the full benefit. It is important to continue taking the medication as prescribed, even if you feel well, and to attend regular check-ups to monitor its effectiveness.
How should I store Atenolol?
Atenolol should be stored at room temperature, between 20° to 25°C (68° to 77°F), away from excess heat and moisture. It should be kept in its original container, tightly closed, and out of reach of children. Do not store it in the bathroom. Proper storage ensures the medication remains effective and safe to use.
Warnings and Precautions
Who should avoid taking Atenolol?
Atenolol is contraindicated in patients with sinus bradycardia, heart block greater than first degree, cardiogenic shock, and overt cardiac failure. It should be used with caution in patients with asthma, diabetes, and certain heart conditions. Abrupt discontinuation can lead to severe heart issues. Pregnant or breastfeeding women should consult a doctor before use.
Can I take Atenolol with other prescription drugs?
Atenolol can interact with several medications, including other blood pressure medications, antiarrhythmics, and certain antidepressants. It may enhance the effects of other antihypertensives, leading to low blood pressure. Combining Atenolol with calcium channel blockers can increase the risk of heart block. Always inform your healthcare provider of all medications you are taking.
Can I take Atenolol with vitamins or supplements?
From all available and reliable information, there is no confirmed data on this. Please consult a doctor for personalized advice.
Can Atenolol be taken safely while pregnant?
Atenolol can cause fetal harm when administered to pregnant women, particularly in the second and third trimesters. It has been associated with intrauterine growth retardation. Pregnant women should only use Atenolol if the potential benefits justify the risks to the fetus. Consultation with a healthcare provider is essential before using Atenolol during pregnancy.
Can Atenolol be taken safely while breastfeeding?
Atenolol is excreted in breast milk and may cause bradycardia and hypoglycemia in breastfed infants. Caution is advised when administering Atenolol to breastfeeding mothers. It is important to consult a healthcare provider to weigh the benefits and risks and to monitor the infant for any adverse effects.
Is Atenolol safe for the elderly?
Elderly patients may be more sensitive to the effects of Atenolol, particularly if they have decreased kidney function. It is recommended to start at the lower end of the dosing range and adjust based on individual response and tolerance. Regular monitoring of blood pressure and kidney function is advised. Consult a healthcare provider for personalized guidance.
Is it safe to exercise while taking Atenolol?
Atenolol may limit the ability to exercise by reducing heart rate and cardiac output, which can affect physical performance. It is important to discuss any exercise plans with a healthcare provider, especially if you experience symptoms like fatigue or shortness of breath during physical activity. They can provide guidance on safe exercise levels while taking Atenolol.
Is it safe to drink alcohol while taking Atenolol?
Drinking alcohol while taking Atenolol can increase the risk of side effects such as dizziness and lightheadedness. Alcohol can also lower blood pressure, which may enhance the blood pressure-lowering effects of Atenolol, potentially leading to hypotension. It's advisable to limit alcohol consumption and consult with a healthcare provider for personalized advice.
Forms / Brands
