If you’re taking metoprolol, it’s useful to know which effects are expected and which need medical attention. Metoprolol is a beta blocker used for conditions including high blood pressure, abnormal heart rhythms, angina, and some heart conditions.
10 possible side effects
- Tiredness or fatigue — one of the more commonly reported effects.
- Dizziness or lightheadedness — particularly when starting treatment or after a dose increase.
- Slow heartbeat (bradycardia) — metoprolol deliberately slows the heart rate, but an excessively slow rate can be a problem.
- Low blood pressure — this can cause weakness, dizziness or fainting.
- Shortness of breath — reported as a side effect and particularly important if it is new or worsening.
- Depressed mood — depression is listed among reported adverse reactions.
- Diarrhea or stomach upset — gastrointestinal effects can occur.
- Cold hands or feet — beta blockers can affect circulation to the extremities.
- Sleep problems or unusual dreams — these are recognized beta-blocker effects.
- Sexual difficulties — some people report reduced sexual function, although it isn’t considered a common effect specifically attributable to metoprolol
