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's taken once a day and cleared by the kidneys.
What it's used for
- High blood pressure
- Chest pain (angina)
- Off-label: preventing bleeding from varices in cirrhosis, migraine prevention
How to take it
- Take it once a day, with or without food.
- Don't stop suddenly.
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
- Slow heartbeat
- Cold hands and feet
Call 911Chest pain, fainting, or a very slow heartbeat
Call 911Wheezing or trouble breathing
Warnings
- Usually not used with asthma.
- It can hide signs of low blood sugar.
- Doses are lower with kidney disease.
Other medicines, foods, and alcohol
- Other heart-rate medicines can slow the heart too much.
Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.
Pregnancy and breastfeeding
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
- DailyMed: FDA drug label for Nadolol (U.S. National Library of Medicine)
- MedlinePlus: Drugs, herbs, and supplements
- FDA: Drugs@FDA
Last updated 2026-11-13.