Metoprolol

Common Brand Names

Betaloc, Lopressor, Metpure, Prolomet

Overview

Metoprolol belongs to a group of medicines called beta blockers.

It's used to:

• treat high blood pressure (hypertension)
• treat conditions that cause an irregular heartbeat (arrhythmia)
• help prevent future heart disease, heart attacks and strokes
• help prevent chest pain caused by angina
• prevent migraines
• reduce your symptoms if you have too much thyroid hormone in your body (thyrotoxicosis). You'll usually take it together with other medicines to treat your symptoms

Important Facts

• Metoprolol slows down your heart rate and makes it easier for your heart to pump blood around your body.
• Your doctor may advise you to take your very first dose before bedtime as it can make you feel dizzy. If you do not feel dizzy after having your first dose, take metoprolol in the morning.
• Metoprolol is usually taken once or twice a day, but sometimes it's prescribed to be taken up to 4 times a day.
• The main side effects of metoprolol are headaches and feeling sick, dizzy or tired. These are usually mild and only last for a short time.

• If you're due to have surgery which involves being put to sleep (having a general anaesthetic), tell your doctor. Metoprolol can lower your blood pressure too much when used with some anaesthetics.