1. Fatigue and tiredness
Fatigue is one of the most commonly reported side effects of metoprolol. This beta-blocker slows your heart rate and reduces cardiac output, which can lower the oxygen and energy supply to your muscles and organs. As a result, you may feel unusually tired or find it harder to maintain your normal activity levels.
Fatigue often appears during the first few weeks of treatment as your body adjusts to the medication. However, if it persists or significantly interferes with your daily routine, it may require medical attention or a dosage adjustment.
What to do: Keep a daily log of your energy levels, noting when fatigue is most severe. This information can help your healthcare provider evaluate whether metoprolol is the cause or if other factors are contributing.
2. Dizziness and lightheadedness
Dizziness or lightheadedness, particularly when standing up quickly, is a common effect of metoprolol. The medication can lower blood pressure by dilating blood vessels and slowing the heart, sometimes causing a temporary drop in blood flow to the brain, known as orthostatic hypotension.
This effect is often more pronounced when starting treatment or increasing the dose. Symptoms may include unsteadiness, a sensation of spinning, or brief fainting spells.
Practical advice:
- Rise slowly from sitting or lying down to allow your blood pressure to stabilize.
- Hold onto a sturdy surface when standing up.
- Ensure adequate hydration to support blood volume.
- Report persistent or severe dizziness to your healthcare provider for evaluation.
