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- What is betaxolol, and how does it work (mechanism of action)?
- What brand names are available for betaxolol?
- Is betaxolol available as a generic drug?
- Do I need a prescription for betaxolol?
- What are the side effects of betaxolol?
- What is the dosage for betaxolol?
- Which drugs or supplements interact with betaxolol?
- Is betaxolol safe to take if I'm pregnant or breastfeeding?
- What else should I know about betaxolol?
What is betaxolol, and how does it work (mechanism of action)?
Betaxolol is a beta-adrenergic blocking drug. The nerves of the sympathetic nervous system--a subdivision of the autonomic nervous system--release a chemical related to adrenaline that binds to the heart-rate controlling cells in the heart as well as the muscles of the heart. Binding causes the heart to beat faster and the muscles of the heart to contract more vigorously and work harder. Betaxolol blocks the binding of the adrenaline-like chemical and prevents the increases in heart rate and muscular contraction. As a result, blood pressure is lowered. By reducing the heart rate and muscular contraction, betaxolol also reduces the heart's need for oxygen to generate energy. Since angina pectoris (heart pain) occurs when the heart's need for oxygen is too great and exceeds the supply of oxygen, betaxolol can prevent angina pectoris. Betaxolol was approved by the FDA in 1985.
What are the side effects of betaxolol?
Betaxolol generally is well tolerated, and side effects usually are mild and transient. Common side effects include:
- abdominal cramps,
- memory loss,
- slow heart rate,
- low blood pressure,
- cold extremities,
- sore throat, and
- shortness of breath or
In patients with existing slow heart rate (bradycardia) and heart block (defects in the electrical conduction of the heart), betaxolol can cause a dangerously slow heart rate and even shock. Betaxolol reduces the force of heart muscle contraction and can aggravate symptoms of heart failure. In patients with coronary artery disease, abruptly stopping betaxolol can suddenly worsen angina, and occasionally precipitate heart attacks. If it is necessary to discontinue betaxolol, its dosage should be reduced gradually over several weeks. Like all other beta-blockers, betaxolol can mask the early warning symptoms of low blood sugar (hypoglycemia) in people with diabetes and can increase or decrease blood sugar. Therefore, it should be used with caution in patients with diabetes.
Quick GuideHow to Lower Blood Pressure: Exercise Tips
What is the dosage for betaxolol?
Betaxolol usually is taken once daily. The optimal dose varies among patients. The recommended dose range is 5-20 mg daily.
Which drugs or supplements interact with betaxolol?
The blood pressure-lowering effects of betaxolol add to the blood pressure-lowering effects of other drugs. For this reason, combinations of betaxolol and other blood pressure-lowering drugs often are used to treat persons with high blood pressure.
When used in combination with diltiazem (Cardizem; Tiazac; Dilacor), verapamil (Calan; Isoptin; Verelan; Covera), amiodarone (Cordarone), or digoxin (Lanoxin), betaxolol or other beta-blockers, can cause complete block of the heart's electrical system causing serious abnormal heart rhythms.
Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen (Motrin, Advil), naproxen (Naprosyn, Anaprox, Aleve), can reduce the blood pressure lowering effects of beta-blockers such as betaxolol.
Is betaxolol safe to take if I'm pregnant or breastfeeding?
There is very little information about the effects of betaxolol in pregnant women. Physicians may use betaxolol if its benefits are deemed to outweigh the potential and unknown risks to the fetus.
Concentrations of betaxolol in breast milk may be up to three times those in the mother's blood. Therefore, betaxolol is used in nursing mothers only if the benefits outweigh potential risks to the infant.
What else should I know about betaxolol?
What preparations of betaxolol are available?
Tablets: 10 and 20 mg.
How should I keep betaxolol stored?
Tablets should be stored at room temperature, 15 C to 30 C (59 F to 86 F).
Reference: FDA Prescribing Information
Quick GuideHow to Lower Blood Pressure: Exercise Tips
Betaxolol (Kerlone [Discontinued Brand]) is a drug prescribed for the treatment of high blood pressure and chest pain of angina. Side effects, drug interactions, dosage, and pregnancy safety should be reviewed prior to taking this medication.
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Related Disease Conditions
High Blood Pressure (Hypertension)
High blood pressure is defined as a pressure of 140/90 mmHg or higher in the arteries. Genetic factors, high salt intake, and...
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Chest pain is a common complaint by a patient in the ER. Causes of chest pain include broken or bruised ribs, pleurisy,...
High Blood Pressure Treatment
High blood pressure (hypertension) means high pressure (tension) in the arteries. Treatment for high blood pressure include...
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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Top betaxolol Related ArticlesComplete List
Angina SymptomsAngina is chest pain due to inadequate blood supply to the heart. Angina symptoms may include chest tightness, burning, squeezing, and aching. Coronary artery disease is the main cause of angina but there are other causes. Angina is diagnosed by taking the patient's medical history and performing tests such as an electrocardiogram (EKG), blood test, stress test, echocardiogram, cardiac CT scan, and heart catheterization. Treatment of angina usually includes lifestyle modification, medication, and sometimes, surgery. The risk of angina can be reduced by following a heart healthy lifestyle.
atenololAtenolol (Tenormin)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 and the treatment of certain types of tremors (familial or hereditary essential tremors). It is important to be aware of the drug interactions related to atenolol, effects on pregnancy, as well as common side effects on the user.
Beta blockers are a class of drugs that block beta-adrenergic substances such as adrenaline (epinephrine), a key agent in the "sympathetic" portion of the autonomic (involuntary) nervous system and activation of heart muscle. By blocking the action of the involuntary nervous system on the heart, beta blockers relieve stress on the heart.
Beta blockers are used for the treatment of irregular heart rhythms, chest pain, heart attack, hypertension, migraine headaches, social phobias, tremors, and glaucoma.
Common side effects of beta blockers are nausea, vomiting, abdominal cramps, diarrhea, and weight gain if you are taking medicine for diabetes (type 1 and type 2). There are other important side effects and serious adverse effects of this drug class that include, blurred vision, insomnia, hair loss, disorientation, CNS system effects, and serious heart problems.
Beta blockers interact with several other drugs, for example, chlorpromazine (Thorazine), clonidine (Catapres), Phenobarbital, nonsteroidal anti-inflammatory drugs (NSAIDs) including aspirin, and diabetes medications, including insulin.
Examples of generic and brand names available for beta blockers in the US include acebutolol (Sectral), atenolol (Tenormin), bisoprolol (Zebeta), metoprolol (Lopressor, Lopressor LA, Toprol XL), nadolol (Corgard), timolol (Blocadren). Talk with your doctor, pharmacist, or other medical professional if you have questions about beta-blockers.
If you notice other effects not listed above, contact your doctor or pharmacist. In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
bisoprololbisoprolol (Zebeta) is a medication in the class of drugs called beta blockers. Bisoprolol (Zebeta) is prescribed for the treatment of high blood pressure, angina, and congestive heart failure. Side effects, warnings and precautions, drug interactions, and patient information should be reviewed prior to taking any medication.
Chest PainChest pain is a common complaint by a patient in the ER. Causes of chest pain include broken or bruised ribs, pleurisy, pneumothorax, shingles, pneumonia, pulmonary embolism, angina, heart attack, costochondritis, pericarditis, aorta or aortic dissection, and reflux esophagitis. Diagnosis and treatment of chest pain depends upon the cause and clinical presentation of the patient's chest pain.
Congestive Heart Failure MedicationsThere are a variety of medications to treat congestive heart failure. Most medicaiton regimines for patients with congestive heart failure are tailored to each patient. Examples of medicaitons prescribed for congestive heart failure include ACE inhibitors (for example, Altace, Capoten, Vasotec); beta blockers; digoxin (Lanoxin); and diuretics. Side effects, drug interactions, dosage, storage, and pregnancy safety information should be reviewed before taking any medication.
Drug InteractionsDrug interactions occur frequently. Get facts about the types of drug interactions, what substances or other things that may interact with drugs such as OTC drug and prescription drugs, vitamins, food(s) (grapefruit), and laboratory tests. Find out how to protect yourself from potential drug interactions.
Drugs: What You Should Know About Your DrugsImportant information about your drugs should be reviewed prior to taking any prescription drug. Side effects, drug interactions, warnings and precauctions, dosage, what the drug is used for, what to do if you miss a dose, how the drug is to be stored, and generic vs. brand names.
Febrile SeizuresFebrile 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,
- moving limbs on both sides of the body,
- lasts 1-2 minutes.
High Blood Pressure HypertensionHigh blood pressure is defined as a pressure of 140/90 mmHg or higher in the arteries. Genetic factors, high salt intake, and increased arterial stiffness cause high blood pressure. Dizziness, headache, nausea, and shortness of breath are just a few symptoms of high blood pressure. Untreated high blood pressure increases the risk of heart disease, kidney disease, atherosclerosis, eye damage, stroke, and increased risk of aneurysms. High blood pressure can be managed with weight loss, lifestyle changes, and medication.
High Blood Pressure Medication
High blood pressure (hypertension) medications include drugs from a variety of different drug classes and types.
- ACE inhibitors
- ARB (angiotensin receptor blockers)
- Beta blockers
- Calcium channel blockers (CCBs)
- Alpha-beta blockers
Clonidine (Catapres) and minoxidil also are drugs prescribed for the treatment of high blood pressure. Side effects, warnings and precautions, safety information, and pregnancy and breastfeeding safety information should be reviewed prior to taking any medication.
High Blood Pressure TreatmentHigh blood pressure (hypertension) means high pressure (tension) in the arteries. Treatment for high blood pressure include lifestyle modifications (alcohol, smoking, coffee, salt, diet, exercise), drugs and medications such as ACE inhibitors, angiotensin receptor blockers, beta blockers, diuretics, calcium channel blockers (CCBs), alpha blockers, clonidine, minoxidil, and Exforge.
Hypertension PictureHigh blood pressure, defined as a repeatedly elevated blood pressure exceeding 140 over 90 mmHg -- a systolic pressure above 140 with a diastolic pressure above 90. See a picture of Hypertension and learn more about the health topic.
Metoprolol (Lopressor, Toprol XL) is a beta-adrenergic blocking agent drug, which blocks the action of the sympathetic nervous system (a portion of the involuntary nervous system). Metoprolol is prescribed to treat high blood pressure (hypertension), heart pain (angina), heart rhythm disorders, and some neurological conditions. Side effects include:
- Sore throat
- Memory loss
- High blood pressure
Drug interactions, dosing, and pregnancy and breastfeeding safety should be reviewed prior to taking any medication.
propranololPropranolol (Inderal, Inderal LA, Innopran XL) is a medication prescribed for the treatment of high blood pressure, angina, certain heart rhythm disorders, migraine headache prevention, and certain types of tremors. Side effects, drug interactions, warnings and precautions, and pregnancy safety information should be reviewed prior to taking any medication.
Side Effects and Adverse Effects of Beta Blockers
Beta blockers (beta-adrenergic blocking agents) is a class of drugs that block norepinephrine and adrenaline from binding to beta receptors on nerves. Beta blockers inhibit (block) these two hormones, thereby reducing heart rate and blood vessels. There are a variety of drugs in this class, for example, atenolol (Tenormin), carvedilol (Coreg), and metoprolol (Lopressor, Toprol XL).
Common side effects of these drugs include:
- Stomach cramps
Other important side effects include:
- Blurred vision
- Hair Loss
These drugs also cause central nervous system (CNS) effects like:
Other serious side effects of beta-blockers include:
- Lupus erythematous
- Serious allergic reactions
- Erythema multiform
- Steven Johnson Syndrome
- Toxic epidermal necrolysis