What is Nadolol used for?
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.
How should I take Nadolol?
Take this medication by mouth with or without food, usually once daily or as directed by your doctor. Your dosage is based on your medical condition and response to therapy.
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).
How do I store Nadolol?
Nadolol is best stored at room temperature away from direct light and moisture. To prevent drug damage, you should not store Nadolol in the bathroom or the freezer. There may be different brands of Nadolol that may have different storage needs. It is important to always check the product package for instructions on storage, or ask your pharmacist. For safety, you should keep all medicines away from children and pets.
You should not flush Nadolol down the toilet or pour them into a drain unless instructed to do so. It is important to properly discard this product when it is expired or no longer needed. Consult your pharmacist for more details about how to safely discard your product.
Precautions & warnings
What should I know before using Nadolol?
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).
This drug may make you dizzy or drowsy. Alcohol or marijuana can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana.
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.
This drug may rarely make your blood sugar level rise, causing or worsening diabetes. Tell your doctor right away if you develop symptoms of high blood sugar such as increased thirst or urination.
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.
Kidney function declines as you grow older. This medication is removed by the kidneys. Therefore, elderly people may be at a greater risk for side effects such as dizziness while using 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.
This medication passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breast-feeding.
Is it safe during pregnancy or breast-feeding?
There are no adequate studies in women for determining risk when using this Nadolol during pregnancy or while breastfeeding. Please always consult with your doctor to weigh the potential benefits and risks before taking Nadolol. Nadolol is pregnancy risk category C according to the US Food and Drug Administration (FDA).
FDA pregnancy risk category reference below:
- A=No risk,
- B=No risk in some studies,
- C=There may be some risk,
- D=Positive evidence of risk,
What side effects can occur from Nadolol?
Dizziness, drowsiness, weakness, and cough may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
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.
This drug may reduce blood flow to your hands and feet, causing them to feel cold. Smoking may worsen this effect. Dress warmly and avoid tobacco use.
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, vision changes, wheezing, new or worsening symptoms of heart failure (such as shortness of breath, swelling ankles/feet, unusual tiredness, unusual/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.
Not everyone experiences these side effects. There may be some side effects not listed above. If you have any concerns about a side-effect, please consult your doctor or pharmacist.
What drugs may interact with Nadolol?
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, neuromuscular blocking agents (e.g., tubocurarine), reserpine, “water pills” (e.g., diuretics such as furosemide).
Tell your doctor or pharmacist if you are taking other products that cause drowsiness such as opioid pain or cough relievers (such as codeine, hydrocodone), alcohol, marijuana, drugs for sleep or anxiety (such as alprazolam, lorazepam, zolpidem), muscle relaxants (such as carisoprodol, cyclobenzaprine), or antihistamines (such as cetirizine, diphenhydramine).
Check the labels on all your medicines (such as allergy or cough-and-cold products) because they may contain ingredients that cause drowsiness. Ask your pharmacist about using those products safely.
Some products have ingredients that could raise your heart rate or blood pressure. Tell your pharmacist what products you are using, and ask how to use them safely (especially cough-and-cold products, diet aids, or NSAIDs such as ibuprofen/naproxen).
Nadolol may interact with other drugs that you are currently taking, which can change how your drug works or increase your risk for serious side effects. To avoid any potential drug interactions, you should keep a list of all the drugs you are using (including prescription drugs, nonprescription drugs and herbal products) and share it with your doctor and pharmacist. For your safety, do not start, stop, or change the dosage of any drugs without your doctor’s approval.
Does food or alcohol interact with Nadolol?
Nadolol may interact with food or alcohol by altering the way the drug works or increase the risk for serious side effects. Please discuss with your doctor or pharmacist any potential food or alcohol interactions before using this drug.
What health conditions may interact with Nadolol?
Nadolol may interact with your health condition. This interaction may worsen your health condition or alter the way the drug works. It is important to always let your doctor and pharmacist know all the health conditions you currently have.
The information provided is not a substitute for any medical advice. You should ALWAYS consult with your doctor or pharmacist before using this Nadolol.
What is the dose of Nadolol for an adult?
Usual Adult Dose for Angina Pectoris
Initial dose: 40 mg orally once a day; may be increased by 40 to 80 mg every 3 to 7 days until optimum response is obtained or pronounced heart rate reduction occurs
Maintenance dose: 40 to 80 mg orally once a day; up to 240 mg once a day may be required
Maximum dose: 240 mg/day
Usual Adult Dose for Hypertension
Initial dose: 40 mg orally once a day; may be increased in 40 to 80 mg increments until optimum blood pressure reduction is achieved
Maintenance dose: 40 to 80 mg orally once a day; up to 320 mg once a day may be required
Renal Dose Adjustments
CrCl greater than 50 mL/min/1.73 m2: Administer every 24 hours
CrCl 31 to 50 mL/min/1.73 m2: Administer every 24 to 36 hours
CrCl 10 to 30 mL/min/1.73 m2: Administer every 24 to 48 hours
CrCl less than 10 mL/min/1.73 m2: Administer every 40 to 60 hours
Storage requirements: Protect from light.
Patient advice: Caution patients against interruption or cessation of therapy without a physician’s advice.
What is the dose of Nadolol for a child?
The dosage has not been established in pediatric patients. It may be unsafe for your child. It is always important to fully understand the safety of the drug before using. Please consult with your doctor or pharmacist for more information.
How is Nadolol available?
Nadolol is available in the following dosage forms and strengths:
- Oral tablet,
- Compounding powder.
What should I do in case of an emergency or overdose?
In case of an emergency or an overdose, call your local emergency services or go to your nearest emergency room.
What should I do if I miss a dose?
If you miss a dose of Nadolol, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and take your regular dose as scheduled. Do not take a double dose.
Hello Health Group does not provide medical advice, diagnosis or treatment.
Review Date: March 30, 2018 | Last Modified: September 12, 2019
Nadolol Dosage. https://www.drugs.com/dosage/nadolol.html. Accessed March 23, 2018.
Nadolol. https://www.webmd.com/drugs/2/drug-11755/nadolol-oral/details. Accessed March 23, 2018.