How do you take Propranolol Hydrochloride?

For high blood pressure, the usual starting dose is one 40 mg tablet taken 2 to 3 times daily. Your doctor may gradually increase this to 80 mg two or three times daily depending on how your body responds. Take the tablets with or after food to help your body absorb the medicine better. Swallow with a full glass of water. Do not suddenly stop taking propranolol without your doctor's guidance — stopping abruptly can be dangerous.

What are the side effects of Propranolol Hydrochloride?

Feeling tired or weak, cold fingers and toes, dizziness or lightheadedness especially when standing up, difficulty sleeping or bad dreams, slow heartbeat

Who should not take Propranolol Hydrochloride?

People with asthma or serious breathing problems should not take propranolol. People with very slow heartbeat, very low blood pressure, or heart failure that is not controlled should avoid it. People with a known allergy to propranolol or other beta-blockers should not use it. People with a condition called pheochromocytoma (a rare adrenal gland tumour) should not take it unless already on other specific medication.

Prescription

Beta-blocker (heart and blood pressure medicine)

Propranolol Hydrochloride

Q: What is Propranolol Hydrochloride used for?

High blood pressure, fast or irregular heartbeat, chest pain (angina), anxiety and nervousness, trembling or shaking hands, prevention of migraine headaches, overactive thyroid symptoms

Last reviewed June 2026

Who is this for?

What is this drug?

Propranolol is a beta-blocker medicine that works by slowing down your heart rate and reducing the force of your heartbeat, which helps lower blood pressure and reduce strain on your heart.

What is it used for?

High blood pressurefast or irregular heartbeatchest pain (angina)anxiety and nervousnesstrembling or shaking handsprevention of migraine headachesoveractive thyroid symptoms

Browse by condition

Headache & Migraine High Blood Pressure Heart Conditions Anxiety & Sleep Problems Thyroid Disorders Heart Failure

How it works

Blocks beta-1 and beta-2 adrenergic receptors in the heart and blood vessels, reducing heart rate, myocardial contractility, and blood pressure whilst decreasing cardiac oxygen demand. Also depresses central nervous system activity, reducing anxiety and tremor, and decreases renin release from the kidneys, contributing to antihypertensive effects.

Prescription Required

You need a doctor's prescription to buy this drug.

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What to watch out for

Only buy propranolol from licensed pharmacies — brands like Eden Propranolol, Festpropra, or Timec Propranolol are commonly available in Nigeria. Never stop taking this medicine suddenly on your own as this can cause a dangerous spike in blood pressure or trigger chest pain — always let your doctor reduce the dose gradually. Do not share your propranolol with someone else even if they have similar symptoms, as the wrong dose can be very harmful.

Common Side Effects

Feeling tired or weak
cold fingers and toes
dizziness or lightheadedness especially when standing up
difficulty sleeping or bad dreams
slow heartbeat

Serious Side Effects

Severe difficulty breathing or wheezing — go to the hospital immediately. Very slow heartbeat with fainting or extreme dizziness — seek emergency help. Swelling of the face
lips or throat which could mean a serious allergic reaction — rush to the nearest hospital.

Drug Interactions

Avoid drinking alcohol while on propranolol as it can make your blood pressure drop too low and increase dizziness. Be careful if you are taking diabetes medicines like insulin or glibenclamide because propranolol can hide the warning signs of low blood sugar (like fast heartbeat and shaking). Do not take propranolol together with other blood pressure or heart medicines like verapamil or nifedipine without your doctor's knowledge as the combination can dangerously slow your heart.

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Pregnancy & Breastfeeding Warning

Propranolol is not considered safe during pregnancy and breastfeeding as it can affect the baby — do not take it without consulting your doctor first.

Who Should NOT Take This

People with asthma or serious breathing problems should not take propranolol. People with very slow heartbeat
very low blood pressure
or heart failure that is not controlled should avoid it. People with a known allergy to propranolol or other beta-blockers should not use it. People with a condition called pheochromocytoma (a rare adrenal gland tumour) should not take it unless already on other specific medication.

How to Store

Store in a cool, dry place away from direct sunlight and heat — Nigerian weather can be very hot so avoid keeping it near windows or in your car. Keep the tablets in their original container and away from moisture. Always keep out of reach of children.

For information only — not medical advice. Always talk to a doctor or pharmacist before changing your medication.