Nadolol is a drug to lower blood pressure in conditions of hypertension, relieve angina pectoris, or treat arrhythmias. This drug can also be used in the treatment of hyperthyroidism and prevention of migraines.

Nadolol is included in the beta blocker drug ( beta blocker ). This drug works by blocking beta receptors in the heart muscle and blood vessels, so that blood flow is smoother, heart rate slows down, and blood pressure decreases.

This drug can be used as a single therapy or in combination with other drugs. Nadolol should not be used carelessly and must be prescribed by a doctor.

Nadolol trademarks: -

What is Nadolol

class Prescription drug
Category Beta blocker
Benefit Lowers blood pressure in hypertension, relieves angina pectoris, and treats heart rhythm disturbances
Used by Mature
Nadolol for pregnant and lactating women Category C: Animal studies have shown an adverse effect on the fetus, but there have been no controlled studies in pregnant women.

Drugs should only be used if the expected benefit outweighs the risk to the fetus.

Nadolol can be absorbed into breast milk. If you are breastfeeding, do not use this medicine without consulting your doctor first.

Drug form Tablet

Warning Before Consuming Nadolol

Nadolol should only be used according to a doctor's prescription. The following are some things you need to pay attention to before consuming nadolol:

  • Tell your doctor about any history of allergies you have. Nadolol should not be taken by someone who is allergic to this drug.
  • Tell your doctor if you have asthma , severe heart failure, or a dangerous heart rhythm disorder, such as AV block. Nadolol should not be taken by patients who have these conditions.
  • Tell your doctor if you have or have ever had heart disease, Raynaud's syndrome , kidney disease, COPD , diabetes, atopic eczema, psoriasis , depression, pheochromocytoma , or hyperthyroidism .
  • Tell your doctor if you are taking certain medications, supplements or herbal products.
  • Tell your doctor if you are pregnant, breastfeeding or planning a pregnancy.
  • Tell your doctor that you are using nadolol before having surgery, including dental surgery.
  • Do not drive a vehicle, operate heavy machinery, or do anything that requires alertness after using nadolol, because this drug can cause dizziness.
  • Do not consume alcoholic beverages while undergoing treatment with nadolol, because it can increase the risk of side effects.
  • Immediately see a doctor if you experience a drug allergic reaction , overdose, or serious side effects, after taking nadolol.

Dosage and Rules for Using Nadolol

The following is the dosage of nadolol according to the condition to be treated and the patient's age:

Condition: Hypertension

  • Adult: Initially 40–80 mg once daily. Dosage can be increased gradually, according to the patient's condition. The maximum dose is 240 mg per day.
  • Elderly: Initial dose of 20 mg, once a day. Dosage can be increased gradually depending on the patient's condition.

Condition: Arrhythmia or migraine

  • Adult: 40–160 mg, once daily.

Condition: Angina pectoris

  • Adult: Initially 40 mg once daily. Dosage can be increased gradually depending on the patient's condition. The maximum dose is 240 mg per day.

Condition: Adjunctive therapy in hyperthyroidism

  • Adult: 80–160 mg, once daily. Dosage can be increased according to the patient's condition.

How to Take Nadolol Correctly

Follow the doctor 's recommendations and read the information printed on the nadolol packaging before starting to consume it. This medicine can be taken before or after meals.

Make sure there is sufficient time between one dose and the next. Try to take nadolol at the same time every day to maximize its effect.

If you forget to take nadolol, consume it immediately if the gap with the next consumption schedule is not too close. If it's close, ignore it and don't double the dose.

For maximum treatment effect, follow the doctor's advice regarding adopting a healthy lifestyle, such as consuming nutritious food, controlling stress, doing regular exercise, and not smoking.

Nadolol is usually used long term. Do not stop taking this drug without consulting your doctor first. Stopping nadolol suddenly can increase the risk of angina recurrence or worsening of the condition experienced.

Do not consume green tea or green tea with nadolol . Green tea can reduce nadolol levels in the blood, thereby reducing its effectiveness.

Store this medication in a closed place in a cool, dry room. Avoid this drug from exposure to direct sunlight and keep it out of reach of children.

Nadolol Interactions with Other Drugs

Nadolol can cause drug interaction effects when used with certain drugs, including:

  • Increased risk of arrhythmias when used with atazanavir, seritinib, dolasetron, saquinavir, or terbutaline
  • Changes in nadolol levels in the blood when used with salmeterol , albuterol, formoterol, or aminophylline
  • Decreased blood pressure and heart rate when used with clonidine
  • Increased risk of side effects when used with diltiazem or verapamil
  • Increased levels of disopyramide in the blood
  • Increased risk of developing severe bradycardia which can be fatal when used with fingolimod or siponimod

Side Effects and Dangers of Nadolol

Side effects that can occur from consuming nadolol are dizziness , drowsiness, fatigue, weakness, or coughing . Check with your doctor if these side effects don't go away or get worse.

See a doctor immediately if you have an allergic drug reaction or serious side effects, such as:

  • cyanosis
  • Mood changes, including confusion or depression
  • Shortness of breath, swelling of the legs, or unusual tiredness
  • Slow, fast , or irregular heart rate
  • Severe dizziness
  • Faint
  • Tingling or numbness
  • Decreased sexual desire
  • Blurred vision
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