Metoprolol is a medication used alone or with other medications to treat high blood pressure (hypertension), chest pain and heart failure, and it is often given to people at risk for repeated heart attacks. Metoprolol is a beta-blocker and works by causing the heart to beat more slowly and the blood pressure to decrease, according to the Mayo Clinic. RxList.com recommends taking Metoprolol regularly and continuously as prescribed.
Common Side Effects
Metoprolol has been linked with dizziness, drowsiness, dry mouth, gas or bloating, constipation, rash or itching, depression, diarrhea, vomiting and sleep issues such as unusual dreams or difficulty sleeping. If any of these side effects cause you discomfort or do not go away, contact your doctor.
Rare But Serious Side Effects
Some side effects are less common but serious, according to the National Library of Medicine. You may need to seek medical help if you experience any of the following: bloating/swelling of the face or extremities, blue-colored toes or fingers, mood changes, unexplained or sudden weight gain, difficulty breathing, fainting or irregular, fast heartbeat.
Vision Side Effects
According to the Mayo Clinic, Metoprolol has rarely been linked to visual disturbances. Seek medical help if you experience vision issues such as disturbed color perception, loss of vision, night blindness, over-bright appearance of lights or halos around lights, tunnel vision or double vision.
Cold Extremities
According to RxList, Metoprolol can cause reduced blood flow to your hands and feet, which can cause them to feel cold. If you use tobacco, this can worsen this effect.
Signs of Overdose
It is possible to overdose on Metoprolol. Signs of overdose can include dizziness, fainting, difficulty breathing or swallowing, change in or loss of consciousness, stopped heart, undetectable pulse and swelling of the hands, feet, ankles or lower legs. If you think you may have overdosed, contact emergency services immediately.
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