10 Metoprolol Side Effects You Should Know About
Metoprolol is a beta-blocker commonly prescribed for high blood pressure, angina, certain abnormal heart rhythms, and some forms of heart failure. Like any medication, it can cause side effects, although many people tolerate it well.
1. Tiredness or Fatigue
Feeling unusually tired is one of the more common effects. Because metoprolol slows the heart rate and reduces the heart’s workload, some people notice reduced energy, particularly when first starting treatment.
2. Dizziness
Metoprolol can lower blood pressure, which may cause dizziness or lightheadedness, especially when standing up quickly.
3. Slow Heart Rate
Because it slows the heart, metoprolol can sometimes cause bradycardia (an unusually slow heart rate).
A very slow pulse accompanied by fainting, severe dizziness, chest discomfort, or shortness of breath requires prompt medical attention.
4. Cold Hands and Feet
Reduced circulation to the extremities can make the hands or feet feel unusually cold.
5. Sleep Disturbances or Vivid Dreams
Some people report difficulty sleeping, unusual dreams, or other sleep changes while taking beta-blockers.
6. Depression or Mood Changes
Mood changes have been reported with beta-blockers, although the relationship isn’t straightforward and depression can have many other causes.
Persistent or significant changes in mood should be discussed with a healthcare professional.
7. Shortness of Breath
Breathing problems aren’t a typical effect for everyone, but beta-blockers can sometimes worsen symptoms in people with asthma or certain other airway diseases.
New or worsening breathing difficulty should be evaluated.
8. Nausea or Digestive Problems
Some people experience nausea, diarrhea, constipation, or stomach discomfort.
These symptoms are often mild but should be discussed if they’re persistent or severe.
9. Sexual Problems
Reduced libido or erectile difficulties can occur in some people taking beta-blockers, although cardiovascular disease and other medications can also contribute.
10. Low Blood Pressure
Metoprolol can lower blood pressure too much in some people, producing dizziness, weakness, blurred vision, or fainting.
Important: Don’t Stop Metoprolol Suddenly
If you’ve been taking metoprolol regularly, don’t abruptly stop it without medical guidance.
Suddenly discontinuing a beta-blocker can cause a rapid increase in heart rate and blood pressure and may worsen angina or increase the risk of serious cardiovascular complications in susceptible people.
A clinician can determine whether the dose should be adjusted or whether another medication is appropriate.
When to Seek Urgent Help
Seek urgent medical attention for fainting, severe difficulty breathing, severe chest pain, a very slow or irregular heartbeat accompanied by symptoms, or signs of a serious allergic reaction.
Bottom Line
Fatigue, dizziness, a slower heart rate, cold extremities, and gastrointestinal symptoms are among the possible side effects of metoprolol. Many people take it safely and benefit substantially from it.
If you’re experiencing side effects, talk with your doctor or pharmacist rather than stopping the medication yourself.
