If you have chest pain (angina) or heart disease (e.g., coronary artery disease, ischemic heart disease, high blood pressure), do not stop using this drug without first consulting your doctor. Your condition may become worse when the drug is suddenly stopped. If your doctor decides you should no longer use this drug, you must gradually decrease your dose according to your doctor's instructions.
When gradually stopping this medication, it is recommended that you temporarily limit physical activity to decrease work for the heart. Seek immediate medical attention if you develop worsening chest pain, tightness/pressure in the chest, chest pain spreading to the jaw/neck/arm, sweating, trouble breathing, or fast/irregular heartbeat.Who should not take Nadolol?
Nadolol is used alone or with other medications to treat high blood pressure (hypertension) and to prevent chest pain (angina). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. In the management of chest pain, nadolol may also help to reduce the frequency of chest pain episodes and improve your ability to exercise.
Nadolol belongs to a class of medications called beta blockers. It works by blocking the action of certain natural substances such as adrenaline (epinephrine) on the heart and blood vessels. This results in a lowering of heart rate, blood pressure, and strain on the heart.
See also the Warning section.
Use this medication regularly in order to get the most benefit from it. To help you remember, take it at the same time each day. This medication treats, but does not cure, high blood pressure. It is important to continue taking this medication even if you feel well. Most people with high blood pressure do not feel sick.
Do not stop taking this medication without consulting your doctor. Your condition may become worse when the drug is suddenly stopped. Your dose may need to be gradually decreased.
Inform your doctor if your condition persists or worsens (e.g., routine blood pressure readings increase).
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if any of the following unlikely but serious side effects occur: bluish color of the fingers/toes/nails, hair loss (reversible), mental/mood changes (e.g., depression, confusion, memory problems), numbness/tingling, decreased sexual ability, swelling of the ankles/feet, severe tiredness, vision changes, wheezing, unexplained/sudden weight gain.
Seek immediate medical attention if any of these unlikely but very serious side effects occur: slow/irregular/fast heartbeat, severe dizziness/fainting.
A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. 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 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Before taking nadolol, tell your doctor or pharmacist if you are allergic to it; or to other beta blockers (e.g., atenolol, propranolol); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: very slow heartbeat (e.g., sinus bradycardia, second- or third-degree atrioventricular block), a certain serious heart condition (cardiogenic shock), uncontrolled severe heart failure, asthma.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: severe allergic reactions (e.g., anaphylaxis), breathing problems (e.g., COPD, emphysema), blood circulation problems (e.g., Raynaud's disease), low blood flow to the heart/brain (coronary artery disease, stroke, transient ischemic attack), diabetes, heart problems (e.g., heart failure, heart attack, valve problems), kidney disease, mental/mood disorders (e.g., depression), muscle problems (e.g., myasthenia gravis), certain skin conditions (atopy, psoriasis), overactive thyroid (hyperthyroidism), certain types of tumor (pheochromocytoma).
To minimize dizziness, get up slowly when rising from a seated or lying position.
Before having surgery, tell your doctor or dentist that you are taking this medication.
If you already have diabetes, be sure to check your blood sugar regularly. This medication may mask the fast/pounding heartbeat, nervousness and shakiness you would usually feel when your blood sugar falls too low (hypoglycemia). Other symptoms of low blood sugar such as hunger, dizziness and sweating are unaffected by this drug.
This medication should be used only when clearly needed during pregnancy. It may harm an unborn baby. Discuss the risks and benefits with your doctor.
Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Some products that may interact with this drug include: alpha blockers (e.g., prazosin), arbutamine, other beta blockers (e.g., atenolol), clonidine, epinephrine, fenoldopam, fingolimod, methyldopa, nasal decongestants (e.g., phenylephrine, pseudoephedrine), neuromuscular blocking agents (e.g., tubocurarine), reserpine, "water pills" (e.g., diuretics such as furosemide).
Tell your doctor or pharmacist if you also take drugs that cause drowsiness such as: certain antihistamines (e.g., diphenhydramine), medicine for sleep or anxiety (e.g., alprazolam, diazepam, zolpidem), muscle relaxants, narcotic pain relievers (e.g., codeine), psychiatric medicines (e.g., chlorpromazine, risperidone, amitriptyline, trazodone).
Check the labels on all your medicines (such as cough-and-cold products, diet aids, or NSAIDs such as ibuprofen, naproxen) because they may contain ingredients that could cause drowsiness or increase your heart rate or blood pressure. Ask your pharmacist for more details.
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: very slow heartbeat, severe dizziness/fainting, loss of consciousness, severe weakness, shortness of breath.
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.
Laboratory and/or medical tests (e.g., blood pressure, kidney function tests) should be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.
If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip themissed dose and resume your usual dosing schedule. Do not double the dose to catch up.
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.Information last revised December 2016. Copyright(c) 2016 First Databank, Inc.
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