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Beta blockers, also known as beta-adrenergic blocking agents, are a class of drugs that works by blocking the neurotransmitters norepinephrine and epinephrine from binding to receptors. There are three known types of beta receptors, known as beta1 (β1), beta2 (β2) and beta3 (β3).
When the neurotransmitters are prevented from binding to the receptors, it in turn causes the effects of adrenaline (epinephrine) to be blocked. This action allows the he...
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This drug should not be used with the following medications because very serious interactions may occur: arbutamine, thioridazine.
If you are currently using any of these medications, tell your doctor or pharmacist before starting this drug.
Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription products you may use, especially of: alpha-blockers (e.g., prazosin), other beta-blockers (e.g., atenolol), bronchodilators (e.g., albuterol, theophylline), calcium-channel blockers (e.g., diltiazem, verapamil), clonidine, drugs for diabetes (e.g., glipizide, glyburide, insulin), epinephrine, fenoldopam, nasal decongestants (e.g., phenylephrine, pseudoephedrine), nonsteroidal anti-inflammatory drugs (NSAIDs such as ibuprofen and naproxen), other drugs for high blood pressure (e.g., methyldopa, reserpine), drugs affecting liver enzymes that remove this medication from your body (e.g., amiodarone, chlorpromazine, St. John's wort).
Tell your doctor or pharmacist if you also take drugs that cause drowsiness such as: certain antihistamines (e.g., diphenhydramine), anti-seizure drugs (e.g., carbamazepine), medicine for sleep or anxiety (e.g., alprazolam, zolpidem), muscle relaxants, narcotic pain relievers (e.g., codeine), psychiatric medicines (e.g., amitriptyline, risperidone, trazodone).
Check the labels on all your medicines (e.g., cough-and cold products, diet aids, nonsteroidal anti-inflammatory drugs-NSAIDs for pain/fever reduction) because they may contain ingredients that could cause drowsiness or increase your heart rate or blood pressure. Ask your pharmacist about the safe use of those products.
This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.
OVERDOSE: If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US national poison hotline at 1-800-222-1222. Canadian residents should call their local poison control center directly. Symptoms of overdose may include: very slow heartbeat, severe dizziness/fainting, slow/shallow breathing.
NOTES: Do not share this medication with others. Lifestyle changes such as stress reduction programs, exercise, and dietary changes may increase the effectiveness of this medicine. Talk to your doctor or pharmacist about lifestyle changes that might benefit you.
Have your blood pressure checked regularly while taking this medication. Discuss with your doctor how to monitor your own blood pressure and pulse.
Laboratory and/or medical tests (e.g., blood pressure, liver tests) should be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.
MISSED DOSE: If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.
STORAGE: Store at room temperature between 59-86 degrees F (between 15-30 degrees C) away from light and moisture. Do not store in the bathroom. Keep all medicines away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.
MEDICAL ALERT: Your condition can cause complications in a medical emergency. For enrollment information, call MedicAlert at 1-800-854-1166 (USA), or 1-800-668-1507 (Canada).
Information last revised October 2010 Copyright(c) 2010 First DataBank, Inc.
Report Problems to the Food and Drug Administration
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.
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