- Side Effects
- Drug Interactions
- What Else I Should Know
What is atenolol, and what is it used for?
Atenolol is a beta-blocker medication used to treat high blood pressure (hypertension), chest pain (angina pectoris) related to coronary artery disease, abnormally rapid heart rates (tachycardias), and to prevent migraine headaches.
Atenolol blocks the effects of adrenergic chemicals, for example, adrenaline or epinephrine, released by nerves of the sympathetic nervous system.
One of the important functions of beta-adrenergic nerves is to stimulate the heart muscle to beat more rapidly. By blocking the stimulation by these nerves, atenolol reduces the heart rate and is useful in treating abnormally rapid heart rhythms.
Atenolol also reduces the force of contraction of heart muscle and lowers blood pressure. By reducing the heart rate, the force of muscle contraction, and the blood pressure against which the heart must pump, atenolol reduces the work of heart muscle and the need of the muscle for oxygen. Since angina occurs when oxygen demand of the heart muscle exceeds the supply, atenolol is helpful in treating angina.
Atenolol was approved by the FDA in August 1981.
- Atenolol can cause breathing difficulties in patients with asthma, chronic bronchitis, or emphysema. In patients with existing slow heart rates (bradycardias) and heart blocks (defects in the electrical conduction of the heart), atenolol can cause dangerously slow heart rates and even shock. Atenolol reduces the force of heart muscle contraction and can aggravate symptoms of heart failure.
- In patients with coronary artery disease, abruptly stopping atenolol can suddenly worsen angina, and occasionally precipitate heart attacks. If it is necessary to discontinue atenolol, its dosage can be reduced gradually over several weeks.
- Hypersensitivity to catecholamines has been observed during withdrawal.
- Exacerbation of angina and, in some cases, myocardial infarction (MI) may occur after abrupt discontinuance.
- When long-term beta-blocker therapy (particularly with ischemic heart disease) is discontinued, dosage should be gradually reduced over 1-2 weeks with careful monitoring.
- If angina worsens markedly or acute coronary insufficiency develops, beta-blocker administration should be promptly reinitiated, at least temporarily (in addition to other measures appropriate for unstable angina).
- Do not suddenly discontinue taking beta-blocker therapy without physician advice.
- Because coronary artery disease (CAD) is common and may be unrecognized, beta-blocker therapy must be discontinued slowly, even in patients treated only for hypertension.
- Do not take if you are allergic to atenolol or any ingredients contained in this drug.
- Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center immediately.
What are the side effects of atenolol?
Atenolol is generally well tolerated, and side effects are mild and transient. Its side effects include:
- abdominal cramps,
- dreaming, memory loss,
- slow heart rate,
- abnormal heart rhythm,
- low blood pressure,
- cold extremities, and
- sore throat.
Other side effects of atenolol include:
- severe congestive heart failure (CHF)
- sick sinus syndrome
- mood swings
- impaired performance on neuropsychiatric tests
- short-term memory impairment
- purple-colored spots on the skin
- low platelet count (thrombocytopenia)
- elevated serum hepatic enzymes and bilirubin
- Peyronie's disease
- antinuclear antibodies (ANA)
- lupus syndrome
- visual disturbances
- dry eyes
- Raynaud phenomenon
What is the dosage for atenolol?
- The dose for treating high blood pressure or angina is 25-100 mg once daily.
- Acute myocardial infarction (heart attack) is treated with two 5 mg injections administered 10 minutes apart. Ten minutes after the last injection, give 50 mg every 12 hours followed by 100 mg oral atenolol daily for 6-9 days. If atenolol injections are not appropriate, patients may be treated with 100 mg daily of oral atenolol for 7 days.
Which drugs or supplements interact with atenolol?
Inform your doctor of all medications you are currently taking, who can advise you on any possible drug interactions. Never begin taking, suddenly discontinue, or change the dosage of any medication without your doctor's recommendation.
Severe interactions of atenolol include:
- There are no known severe reactions with the use of atenolol.
Atenolol has serious interactions with at least 21 different drugs.
Atenolol has moderate interactions with at least 175 different drugs.
Atenolol has mild interactions with at least 40 different drugs.
The drug interactions listed above are not all of the possible interactions or adverse effects. For more information on drug interactions, visit the RxList Drug Interaction Checker.
It is important to always tell your doctor, pharmacist, or health care provider of all prescription and over-the-counter medications you use, as well as the dosage for each, and keep a list of the information. Check with your doctor or health care provider if you have any questions about the medication.
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What else should I know about atenolol?
What preparations of atenolol are available?
Tablets: 25, 50 and 100 mg. Injection: 5 mg/10 ml
How should I keep atenolol stored?
Atenolol should be store at room temperature 20 C to 25 C (68 F to 77 F).
Atenolol is a beta-adrenergic blocking agent, blocking the action of the sympathetic nervous system, a portion of the involuntary nervous system. Atenolol is prescribed for patients with high blood pressure (hypertension), used to treat chest pain (angina pectoris) related to coronary artery disease, and is also useful in slowing and regulating certain types of abnormally rapid heart rates (tachycardias). Other uses for atenolol include the prevention of migraine headaches.
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Should I Go to the ER for a Migraine?
A migraine is a severe throbbing and pulsating headache that causes pain on one side of the head. A patient should visit an emergency department if they have a severe headache with or without nausea and vomiting.
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Paroxysmal Supraventricular Tachycardia (PSVT)
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Can You Take Time Off Work for a Migraine?
Migraines are most common in adults of working age. Since migraines are still misunderstood, there's not typically a lot of support at work. Talk to your employer and discuss sick policies. They may have information about managing migraines and work. You should also tread your company's Equality and Diversity and Health and Safety policies.
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Migraine headache is a type of headache in which the exact cause is not known; however, they may be inherited, and certain foods and environmental factors can trigger and may contribute them. A stroke (brain attack) happens when a blood vessel in the brain leaks, bursts, or becomes blocked, which can be caused by many other health problems. Both migraines and strokes can can cause severe head pain (migraine pain usually is only on one side of the head). Migraine aura symptoms may mimic or feel like a stroke or mini-stroke (transient ischemic attack, TIA) because they have similar symptoms and signs like severe headache, numbness in the legs, feet, arms, hands, or face, nausea, vomiting, and dizziness. Other migraine aura symptoms include vision problems like flashing lights or blind spots in one eye. The main difference between migraine headache and stroke symptoms and signs is that a migraine headaches usually come on gradually while a stroke symptoms come on suddenly and unexpectedly.
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What Is the Most Common Type of Migraine?
The most common type of migraine is migraine without aura (common migraine). 70-90% of people with migraine experience this type. The frequency of this type of migraine may range from once a year to several times per week.
Migraine vs. Headache: Differences and Similarities
Headaches are the most common reason why a person goes to the doctor or other healthcare professional for treatment. There are different types of headaches, for example, migraine, tension, and cluster headaches. The most common type of headache is tension headache. Migraine is much less common. There are few similarities between migraine and other headaches, for example, the severity of the pain can be the same, mild, moderate, or severe; and they can occur on one side or both sides of the head. However, there are many differences between migraine and other types of headaches. Migraine headaches also have different names, for example, migraine with aura and menstrual migraine. Symptoms of migraine that usually aren't experienced by a person with another type of headache include nausea, vomiting, worsens with mild exercise, debilitating pain, eye pain, throbbing head pain. Migraine trigger include light, mild exercise, strong smells, certain foods like red wine, aged cheese, smoked meats, artificial sweeteners, chocolate, alcohol, and dairy products, menstrual period, stress, oversleeping, and changes in barometric pressure. Untreated migraine attacks usually last from 4 to 72 hours, but may last for weeks. Most headaches resolve within 24-48 hours. Doctors don't know exactly what causes migraine headaches; however, other headaches like tension headaches have more specific triggers and causes. Additional tests usually are required to diagnose migraine from other types of headaches, diseases, or other medical problems. Most headaches can be treated and cured with home remedies like essential oils, massage, and over-the-counter pain medication like acetaminophen (Tylenol) and NSAIDs (nonsteroidal anti-inflammatory drugs) like naproxen (Aleve, Anaprox, Naprosyn) or ibuprofen (Advil, Midol, Motrin). Most headaches resolve with OTC and home remedy treatment, while your doctor may need to prescribe medication to treat your migraines. If you have the "worst headache of your life," seek medical care immediately.
Heart Disease in Women
Heart disease in women has somewhat different symptoms, risk factors, and treatment compared to heart disease in men. Many women and health professionals are not aware of the risk factors for heart disease in women and may delay diagnosis and treatment. Lifestyle factors such as diet, exercise, tobacco use, overweight/obesity, stress, alcohol consumption, and depression influence heart disease risk in women. High blood pressure, high cholesterol, and diabetes also increase women's risk of heart disease. Electrocardiogram (EKG or ECG), stress-ECG, endothelial testing, ankle-brachial index (ABI), echocardiogram, nuclear imaging, electron beam CT, and lab tests to assess blood lipids and biomarkers of inflammation are used to diagnose heart disease. Early diagnosis and treatment of heart disease in women saves lives. Heart disease can be prevented and reversed with lifestyle changes.
What Causes Migraines?
A migraine is a complex disorder that involves episodes of recurrent and severe headaches. An episode of a migraine can be very painful, lasting for hours, making day-to-day activities difficult until the episode is resolved. The frequency and severity of migraine attacks tend to decline with age. And women are more likely to suffer from migraines than men.
Pseudotumor Cerebri (Idiopathic Intracranial Hypertension)
Pseudotumor Cerebri (intracranial hypertension) is a condition where there is an increase in pressure of fluid surrounding the brain and spinal cord (cerebrospinal fluid or CSF) mimicing a brain tumor. The cause is unknown. The most common symptom is headache but also include eye-pain, vision loss and double vision. Pseudotumor cerebri is diagnosed with MRI or CAT scans and treated by discontinuing offending medications (if applicable), weight loss and diuretic medications. The condition can also be helped by repeated drainage of spinal fluid using the lumbar puncture.
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Learn what medical treatments can help ease your angina pain symptoms and help you manage this condition.
Febrile seizures, or convulsions caused by fever, can be frightening in small children or infants. However, in general, febrile seizures are harmless. Febrile seizure is not epilepsy. It is estimated that one in every 25 children will have at least one febrile seizure. It is important to know what to do to help your child if he/she has a febrile seizure. Some of the features of a febrile seizure include losing consciousness, shaking, moving limbs on both sides of the body, and lasts 1-2 minutes. Less commonly, a febrile seizure may only affect one side of the body.
Can High Blood Pressure Hurt My Eyes?
Unfortunately, yes. Suffering from untreated or poorly controlled high blood pressure for a long time can be detrimental to your eyes. Several eye diseases are directly or indirectly caused by high blood pressure (hypertension).
How Do You Get Rid of a Migraine Fast?
Migraine is a neurological condition that is characterized by recurrent episodes of intense headaches. It may be associated with symptoms such as nausea, vomiting, and other clinical features.
How Long Do Migraines Last For?
Migraines typically last from four to 72 hours. The frequency of migraines differs for everyone, but usually, there would be two to four headaches per month. In some, the migraines may occur every few days, while others may get them once or twice a year.
What Does an Angina Attack Feel Like?
Angina is chest pain caused by a lack of oxygen supply to the heart. Learn the signs of an angina attack, what causes it, how doctors diagnose it, and what you can do to treat it.
Preeclampsia (Pregnancy Induced Hypertension)
Preeclampsia is related to increased blood pressure and protein in the mother's urine. Preeclampsia typically begins after the 20th week of pregnancy. When preeclampsia causes seizures, it is termed "eclampsia" and is the second leading cause of maternal death of in the US. Preeclampsia is the leading cause of fetal complications. Risk factors for preeclampsia include high blood pressure, obesity, multiple births, and women with preexisting medical conditions such as diabetes, kidney disease, rheumatoid arthritis, lupus, or scleroderma. Pregnancy planning and lifestyle changes may reduce the risk of preeclampsia during pregnancy.
Is Ventricular Tachycardia Serious?
Also called VT or V-tach, ventricular tachycardia may last only for a few seconds but can also last for minutes at a time, in which case it can be life-threatening.
Hypertension-Induced Chronic Kidney Disease
Hypertension-induced chronic kidney disease (CKD) is a long-standing kidney condition that develops over time due to persistent or uncontrolled high blood pressure (hypertension).
Are Migraine Auras Serious?
Migraine with aura (also called classic migraine) is repeated episodes of headache that occur during or after sensory disturbances (aura or migraine aura). These disturbances may include symptoms such as flashes of light, blind spots, and other vision changes or tingling over the hand or face.
High Blood Pressure Symptoms
Most people with high blood pressure have no signs or symptoms, even if blood pressure readings reach dangerously high levels. In some patients, symptoms may include fatigue, headaches, dizziness, confusion, sweating, chest pain and vision problems.
What Are the First Signs of a Migraine?
The first sign of a migraine is severe eye pain associated with a dull headache. Migraines gradually worsen with physical activity.
Can Angina Lead to a Heart Attack?
Angina, or angina pectoris, is a sudden chest pain caused by low blood flow to the heart. Yes, some types of angina attacks can lead to heart complications.
What Is High Blood Pressure (Hypertension)?
High blood pressure or hypertension is when the blood pressure readings consistently range from 140 or higher for systolic or 90 or higher for diastolic. Blood pressure readings above 180/120 mmHg are dangerously high and require immediate medical attention.
How Does High Blood Pressure Affect Pregnancy?
High blood pressure during pregnancy can cause serious complications. Learn more about the signs of and risks associated with the condition.
Heart Disease Treatment in Women
Heart disease treatment in women should take into account female-specific guidelines that were developed by the American Heart Association. Risk factors and symptoms of heart disease in women differ from those in men. Treatment may include lifestyle modification (diet, exercise, weight management, smoking cessation, stress reduction), medications, percutaneous intervention procedure (PCI), and coronary artery bypass grafting (CABG). Heart disease is reversible with treatment.
Is Pseudotumor Cerebri the Same as Intracranial Hypertension?
Pseudotumor cerebri (PTC) is also called idiopathic intracranial hypertension (IIH). The condition causes symptoms similar to a brain tumor.
Which Are the Pressure Points to Relieve Migraines?
Migraines are complex disorders involving episodes of recurrent and severe headaches. They generally present as a headache on one side and may be associated with visual or sensory symptoms (such as seeing flashes of light, colorful or bright shapes, or hearing sounds of various types) collectively called “aura.”
What Causes High Blood Pressure in Children?
Research states that kidney disease is the main cause of high blood pressure in children; however, here are the other potential causes of hypertension in kids.
What Is the Best Cure for Migraine?
The best cure for migraine involves preventive medications and lifestyle changes. Some newer medications and therapies are effective in controlling the symptoms of migraine. Avoiding or controlling triggers may provide considerable benefit. Migraine can be prevented mainly by using medications, avoiding triggers and implementing lifestyle changes.
What Foods Trigger Migraines?
Migraine is a chronic neurological disorder that features intense headaches on one or both sides of the head. Migraine attacks may resolve in few hours or may take as long as several days.
Treatment & Diagnosis
- High Blood Pressure (Hypertension)
- Pregnancy-Induced Hypertension
- Heart Failure
- Mitral Valve Prolapse
- Pulmonary Hypertension
- Doctor: Checklist to Take To Your Doctor's Appointment
- Atrial Fibrillation (AFib)
- Heart Disease
- Portal Hypertension
- Postural Orthostatic Tachycardia Syndrome
- Paroxysmal Supraventricular Tachycardia (PSVT)
- Migraines Survival with Christina Peterson, M.D.
- Migraine: Managing Migraine Misery
- Migraine & Headache Q & A
- Headaches and Migraine: Easing the Pain -- Seymour Diamond, MD
- High Blood Pressure FAQs
- Thyroid FAQs
- Atrial Fibrillation A-Fib FAQs
- Migraine Headaches FAQs
- High Blood Pressure Symptoms
- Migraine Headache Treatment
- Medication Disposal
- Angina: Don't Take It Lightly
- Dangers of Mixing Medications
- Vestibular Migraine and Janet Jackson
- Beta Blockers May Decrease Heart Complications Of Surgery
- High Blood Pressure: Questions To Ask Your Doctor
- Inherited High Blood Pressure in a Teenager
- Hypertension In The Elderly - Deserves More Attention
- How To Reduce Your Medication Costs
- Salt, DASH, High Blood Pressure
- Pharmacy Visit, How To Get The Most Out of Your Visit
- High Blood Pressure and Exercise
- Indications for Drugs: Approved vs. Non-approved
- Beta Blockers: Why Take a Beta Blocker?
- Drugs: Buying Prescription Drugs Online Safely
- Drugs: The Most Common Medication Errors
- What Does Hypertension Urgency Mean?
- What Is the Difference Between ACE Inhibitors and A Beta Blockers?
- How Do You Get Rid of a Migraine?
- Do I Have Angina?
- Does Menopause Cause High Blood Pressure?
- Can I Lift Weights with High Blood Pressure?
- Can Botox Cure Migraines?
- Migraine Symptoms
- Angina Diagnosis
- Angina Symptoms
- Pain Relievers and High Blood Pressure
- Generic Drugs, Are They as Good as Brand-Names?
- Migraines: Eat to Minimize Your Migraines
- Heart Healthy Diet: Hypertension & Heart Disease
- High Blood Pressure: Improve Your Lifestyle
Medications & Supplements
- Beta Blockers vs. Calcium Channel Blockers
- Beta Blockers
- Types of High Blood Pressure Medications
- Drugs: Questions to Ask Your Doctor or Pharmacist about Your Drugs
- labetalol, Normodyne, Trandate
- Beta Blockers vs. ARBs
- Drug Interactions
- Beta Blocker Side Effects (Adverse Effects)
- carvedilol (Coreg)
- metoprolol (Lopressor, Toprol XL)
- ACE Inhibitors vs. Beta Blockers
- Congestive Heart Failure Medications
- propranolol, Inderal, Inderal LA, Innopran XL
- Sectral (acebutolol)
- bisoprolol (Zebeta)
- atenolol and chlorthalidone, Tenoretic
- erenumab (Aimovig)
- nadolol (Corgard)
- Types of Migraine Headache Medications
- bisoprolol and hydrochlorothiazide (Ziac)
- timolol (Betimol)
- Types of High Blood Pressure (Hypertension) Medications
- betaxolol, Kerlone (Discontinued Brand)
Prevention & Wellness
- Could Common Heart Meds Lower Prostate Cancer Risk?
- Beta Blockers May Not Be Best Heart Drugs for Dementia Patients
- Do Angioplasty Patients Really Need Beta-Blocker Drugs?
- Blood Pressure Drugs Linked to Longer Ovarian Cancer Survival
- High Blood Pressure May Up Psoriasis Risk for Women
- Drugs Can Sometimes Prevent Migraines, but at a Cost
- Melatonin May Improve Sleep for People on Blood-Pressure Meds
- 2 Common Blood Pressure Meds Fare Equally in Preventing Heart Woes
- Blood Pressure Drugs Linked to Lip Cancer in Study
- Common Blood Pressure Drugs May Not Cut Colon Cancer Risk
- Prescription Meds Can Put on Unwanted Pounds
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