or reduce the dose on your own. Abruptly stopping metoprolol can cause a rebound rise in heart rate and blood pressure that raises serious risks for people with heart conditions. Any change must be supervised.
When to Contact Your Healthcare Provider Promptly
Most side effects are manageable, yet some signals deserve same-day attention:
Fainting, near-fainting, or severe dizziness that does not pass quickly
Heart rate consistently below 50 beats per minute or irregular rhythms
Chest pain, increasing shortness of breath at rest, or sudden swelling in legs or ankles
Severe
