10 Common Side Effects of Metoprolol
Metoprolol is a beta blocker commonly prescribed for high blood pressure, angina, certain heart-rhythm problems, and other cardiovascular conditions. Side effects vary between people and between formulations (metoprolol tartrate vs. succinate).
Common effects
- Tiredness or fatigue — one of the more common effects, particularly when starting treatment.
- Dizziness or lightheadedness — especially when standing up quickly.
- Slow heartbeat (bradycardia) — metoprolol intentionally lowers heart rate, but an excessively slow rate can be problematic.
- Low blood pressure — may cause weakness, dizziness, or faintness.
- Cold hands and feet — reduced peripheral circulation can make extremities feel colder.
- Shortness of breath or reduced exercise tolerance — some people notice they tire more easily.
- Sleep disturbances or vivid dreams — beta blockers can affect sleep in some individuals.
- Depressed mood — mood changes can occur, although a direct causal relationship isn’t always clear.
- Nausea or stomach discomfort — gastrointestinal symptoms can occur.
- Sexual difficulties — decreased libido or erectile difficulties are reported by some people taking beta blockers.
Important: don’t stop metoprolol suddenly
Abruptly stopping a beta blocker can cause rebound increases in heart rate and blood pressure and can worsen angina or other heart problems. If you’re experiencing troublesome side effects, contact your prescriber about adjusting the dose or changing treatment rather than stopping it yourself.
Seek prompt medical attention for fainting, severe dizziness, very slow or irregular heartbeat, new/worsening breathing difficulty, chest pain, or signs of a serious allergic reaction.
If you tell me your metoprolol dose, whether it’s tartrate or succinate, and which side effect you’re experiencing, I can explain whether it is a known effect and what questions to discuss with your doctor.
