Headlines like “The 10 Metoprolol Side Effects Your Doctor Is Praying You Don’t Discover” are misleading and sensational. Doctors are expected to discuss the benefits and known risks of medications such as metoprolol so patients can make informed decisions.
Metoprolol is a beta blocker commonly prescribed for high blood pressure, angina, heart failure, certain abnormal heart rhythms, and after a heart attack. Many people take it safely, but it can cause side effects.
Some of the more common side effects include:
- Fatigue or tiredness
- Dizziness or lightheadedness, especially when standing up
- A slower-than-normal heart rate
- Cold hands and feet
- Mild nausea or stomach upset
- Sleep disturbances or vivid dreams (in some people)
Less common but more serious side effects can include:
- Shortness of breath or worsening wheezing, particularly in people with asthma or certain lung diseases
- Fainting or severe dizziness
- Very slow heart rate
- Worsening symptoms of heart failure, such as increasing leg swelling, rapid weight gain, or increasing shortness of breath
- Signs of an allergic reaction, such as swelling of the face or throat or difficulty breathing
Important points
- Do not stop metoprolol suddenly. Abruptly discontinuing it can increase the risk of chest pain, abnormal heart rhythms, or heart attack. If it needs to be stopped, a healthcare professional will usually recommend tapering the dose.
- Take it exactly as prescribed. Some forms are taken once daily, while others are taken more often.
- Tell your healthcare provider about all other medications you take, as metoprolol can interact with certain drugs.
If you’re taking metoprolol, contact your healthcare provider if side effects are persistent or bothersome. Seek emergency medical care if you develop chest pain, severe shortness of breath, fainting, or signs of a severe allergic reaction.
If you tell me:
- why you’re taking metoprolol (for example, high blood pressure or an irregular heartbeat),
- your dose, and
- any symptoms you’re experiencing,
I can help explain which side effects are common, which warrant prompt medical attention, and what questions to discuss with your healthcare provider.
