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Propranolol

Brand names: Inderal LA, InnoPran XL, Hemangeol

Propranolol is a beta blocker used for high blood pressure, migraine prevention, tremors, and some heart rhythm problems.

Brand namesInderal LA, InnoPran XL, Hemangeol
Type of medicineBeta blocker
Prescription?Prescription
ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.

Overview

It blocks adrenaline's effects throughout the body. It's also used off-label for the physical symptoms of performance anxiety.

What it's used for

  • High blood pressure
  • Preventing migraines
  • Essential tremor
  • Chest pain (angina) and fast heart rhythms
  • Off-label: performance anxiety

How to take it

  • Take it the same way each day, with or without food as your label says.
  • Swallow extended-release capsules whole.
  • Don't stop suddenly. Stopping fast can cause chest pain or a heart attack.

Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.

Side effects

Common side effects

  • Tiredness
  • Dizziness
  • Cold hands and feet
  • Slow heartbeat
  • Vivid dreams or trouble sleeping
Call 911Wheezing or trouble breathing
Call 911Chest pain, fainting, or a very slow heartbeat
Call your provider todaySwelling in the legs, fast weight gain, or worse shortness of breath

Warnings

  • Usually not used in people with asthma.
  • It can hide signs of low blood sugar.
  • Infants on Hemangeol must be fed regularly to avoid low blood sugar.

Other medicines, foods, and alcohol

  • Other heart-rate medicines can slow the heart too much.
  • Some antidepressants and heart rhythm medicines raise its level.
  • Alcohol can change its levels.

Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.

Pregnancy and breastfeeding

Sometimes used in pregnancy. Talk with your provider.

Missed doses, overdose, and storage

If you miss a dose

Take it as soon as you remember, unless it's almost time for your next dose. Then skip the missed dose. Don't take two doses at once.

If someone takes too much

Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.

Storing it

Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.

Conditions it's used for

Sources

Last updated 2026-11-13.