Orphenadrine is a muscle relaxant. It works by blocking nerve impulses (or pain sensations) that are sent to your brain.

Orphenadrine is used together with rest and physical therapy to treat skeletal muscle conditions such as pain or injury.

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  • Norflex
  • Rare
    Chest pain
    chills
    cough
    fever
    hallucinations (seeing, hearing, or feeling things that are not there)
    headache
    shortness of breath, troubled breathing, tightness in chest, and/or wheezing
    skin rash, hives, itching, or redness
    sores, ulcers, or white spots on lips or in mouth
    swollen and/or painful glands
    unusual bruising or bleeding
    unusual tiredness or weakness
    Incidence not known
    Abdominal or stomach pain
    diarrhea
    fainting
    fast, pounding irregular heartbeat or pulse
    glaucoma
    joint or muscle pain
    nausea
    numbness or tingling of face, hands, or feet
    redness and soreness of eyes
    swelling of feet or lower legs
    vomiting
    If any of the following symptoms of overdose occur while taking orphenadrine, get emergency help immediately:

    Symptoms of Overdose
    Blurred vision
    confusion, delirium, or hallucinations
    constipation
    difficult urination
    drowsiness
    dry eyes, mouth, nose, or throat
    eye pain
    flushing or redness of face
    troubled breathing
    Some orphenadrine side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned about them:

    Less common or rare
    Dizziness or lightheadedness
    excitement, irritability, nervousness, or restlessness
    headache
    muscle weakness
    unusually large pupils of eyes
    Incidence not known
    Anxiety
    deep or fast breathing with dizziness
    itching skin
    mental confusion
    numbness of feet, hands and around mouth
    trembling or shaking of hands or feet shakiness in legs, arms, hands, or feet
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