Propranolol

Beta blocker
PRESCRIPTION ONLY IN INDIA

Propranolol is a beta blocker found in 1 medicine sold in India, such as Ciplar 40. Below: what it is for, how it works, how to take it, side effects, interactions and pregnancy advice.

What it is used for

Treats high blood pressure, fast heartbeat, tremor, and prevents migraine; eases physical anxiety symptoms.

How it works

A non-selective beta blocker for high blood pressure, tremor, anxiety symptoms, migraine prevention and some liver conditions.

How to take it

Usually 10 to 80 mg two or three times a day, or slow-release once a day.

Common side effects

  • Tiredness
  • Cold hands and feet
  • Slow pulse
  • Dizziness
  • Vivid dreams
  • Sleep problems

Get medical help straight away if

  • Breathlessness or wheeze
  • Very slow pulse or fainting
  • Swollen ankles or rapid weight gain

Be careful

Not for people with asthma; do not stop suddenly.

Other medicines and interactions

Do not stop suddenly (it can trigger chest pain or a heart attack); taper as advised. Verapamil and diltiazem together can slow the heart dangerously. Can hide low sugar warning signs in diabetes. It can worsen asthma.

Pregnancy and breastfeeding

Some beta blockers (such as labetalol) are used in pregnancy; ask your doctor whether yours is suitable. Babies may need watching for slow heart rate or low sugar after birth.

Brands of Propranolol (1)

Ciplar 40

Common questions

What is Propranolol used for?

Treats high blood pressure, fast heartbeat, tremor, and prevents migraine; eases physical anxiety symptoms.

How does Propranolol work?

A non-selective beta blocker for high blood pressure, tremor, anxiety symptoms, migraine prevention and some liver conditions.

How should I take Propranolol?

Usually 10 to 80 mg two or three times a day, or slow-release once a day.

What are the side effects of Propranolol?

Common: Tiredness, cold hands and feet, slow pulse, dizziness, vivid dreams, sleep problems. Get help straight away for: Breathlessness or wheeze, very slow pulse or fainting, swollen ankles or rapid weight gain.

Does Propranolol interact with other medicines?

Do not stop suddenly (it can trigger chest pain or a heart attack); taper as advised. Verapamil and diltiazem together can slow the heart dangerously. Can hide low sugar warning signs in diabetes. It can worsen asthma.

Is Propranolol safe in pregnancy and breastfeeding?

Some beta blockers (such as labetalol) are used in pregnancy; ask your doctor whether yours is suitable. Babies may need watching for slow heart rate or low sugar after birth.

Does Propranolol need a prescription in India?

Yes. In India it is a prescription (Schedule H) medicine, so a pharmacist should sell it only with a doctor's prescription.

Which brands contain Propranolol?

Ciplar 40.

Sources and further reading

NHS (UK National Health Service) and MedlinePlus (US National Library of Medicine) are free, reviewed medicine guides. Brand names and doses there may differ from India.

Last reviewed 31 October 2026. Written by Satya Babu from standard prescribing information.

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For information only, not medical advice. This page is a plain-language summary written from standard prescribing information and the public guides linked below. Brands sometimes change their formula, so always check the composition printed on the pack. Doses here are typical adult doses; yours may differ. Do not start, stop or change a medicine without your doctor or pharmacist, and keep all medicines away from children. In an emergency, call 112 (India) or your local emergency number.