Metoprolol is a beta-blocker that affects the heart and circulation (blood flow through arteries and veins).

Metoprolol is used to treat angina (chest pain) and hypertension (high blood pressure). It is also used to treat or prevent heart attack.

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  • Lopressor, Metoprolol Succinate ER, Metoprolol Tartrate, Toprol-XL
  • More common
    Blurred vision
    chest pain or discomfort
    dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
    shortness of breath
    slow or irregular heartbeat
    unusual tiredness or weakness
    Less common
    Bloating or swelling of the face, arms, hands, lower legs, or feet
    decreased urine output
    difficult or labored breathing
    difficulty with speaking
    dilated neck veins
    disturbed color perception
    double vision
    extreme fatigue
    fast, pounding, or racing heartbeat or pulse
    halos around lights
    inability to move the arms, legs, or facial muscles
    inability to speak
    irregular breathing
    loss of vision
    night blindness
    noisy breathing
    overbright appearance of lights
    pain, tension, and weakness upon walking that subsides during periods of rest
    paleness or cold feeling in the fingertips and toes
    rapid weight gain
    seeing, hearing, or feeling things that are not there
    short-term memory loss
    slow speech
    swelling of the face, fingers, feet, or lower legs
    tightness in the chest
    tingling of the hands or feet
    tingling or pain in the fingers or toes when exposed to cold
    troubled breathing
    tunnel vision
    unusual weight gain or loss
    Bluish color skin of the fingers or toes
    clay-colored stools
    continuing loss of appetite
    continuing or severe abdominal or stomach pain
    continuing or severe nausea and vomiting
    dark urine
    difficulty with moving
    general tiredness and weakness
    increased frequency of urination
    itching skin
    light-colored stools
    lower back or side pain
    muscle pain or stiffness
    numbness of the fingers or toes
    pain, swelling, or redness in the joints
    sore throat
    sores, ulcers, or white spots on the lips or in the mouth
    unpleasant breath odor
    unusual bleeding or bruising
    upper right abdominal or stomach pain
    vomiting of blood
    yellow eyes and skin
    Incidence not known
    Black, tarry stools
    bleeding gums
    blood in the urine or stools
    burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
    cool, sweaty skin
    pinpoint red spots on the skin
    If any of the following symptoms of overdose occur while taking metoprolol, get emergency help immediately:

    Symptoms of overdose
    Bluish color of the fingernails, lips, skin, palms, or nail beds
    change in consciousness
    loss of consciousness
    no blood pressure or pulse
    stopping of heart
    very drowsy or sleepy
    Some of the side effects that can occur with metoprolol may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

    Less common
    decreased interest in sexual intercourse
    difficulty having a bowel movement (stool)
    dry mouth
    excess air or gas in stomach or intestines
    feeling of constant movement of self or surroundings
    feeling of indigestion
    feeling sad or empty
    full feeling
    inability to have or keep an erection
    loss in sexual ability, desire, drive, or performance
    loss of interest or pleasure
    pain in the chest below the breastbone
    passing gas
    redness or other discoloration of the skin
    runny nose
    sensation of spinning
    stuffy nose
    trouble concentrating
    trouble sleeping
    Bone pain
    continuing ringing or buzzing or other unexplained noise in the ears
    dry eyes
    hair loss or thinning of the hair
    hearing loss
    increased sensitivity of the skin to sunlight
    pain of penis on erection
    severe sunburn
    Incidence not known
    Change in taste or bad, unusual, or unpleasant (after) taste
    fear or nervousness
    hives or welts
  • (injectable solution, oral tablet, oral tablet, extended release, compounding powder)