METHYLIN Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

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    If experienced, these tend to have a Less Severe expression i

    • over excitement
    • dry mouth
    • difficulty sleeping
    • excessive sweating
    • decreased appetite
    • headache
    • nausea
    • nervousness
    • irritability
    • intense abdominal pain
    • upper abdominal pain

    INFREQUENT side effects

    If experienced, these tend to have a Severe expression i

    • decreased blood platelets
    • high blood pressure
    • angina, a type of chest pain
    • a type of abnormal movement disorder called dyskinesia
    • a skin rash
    • chest pain

    If experienced, these tend to have a Less Severe expression i

    • aggressive behavior
    • throat irritation
    • a common cold
    • indigestion
    • drowsiness
    • sensation of spinning or whirling
    • dizziness
    • heart throbbing or pounding
    • cough
    • vomiting
    • anxious feelings

    RARE side effects

    If experienced, these tend to have a Severe expression i

    • a type of blood disorder with a decrease in all types of blood cells called pancytopenia
    • anemia
    • low platelet count and bleeding from immune response
    • low levels of white blood cells
    • mental problems from taking the drug
    • toxic psychosis
    • manic behavior
    • mood changes
    • suicidal thoughts
    • addiction to a drug
    • chronic muscle twitches or movements
    • a heart attack
    • supraventricular tachycardia
    • extra heartbeats
    • ventricular premature beats
    • slow heartbeat
    • a hemorrhage in the brain
    • a stroke
    • Raynaud's phenomenon, a condition where blood vessels constrict too much with coldness or stress
    • acute liver failure
    • liver damage
    • priapism, a prolonged erection of the penis
    • inflammation of the skin with blisters
    • erythema multiforme, a type of allergic skin reaction
    • skin rash with sloughing
    • a condition with muscle tissue breakdown called rhabdomyolysis
    • hallucinations
    • seizures
    • a tonic-clonic seizure
    • high amount of bilirubin in the blood
    • failure to grow
    • abnormal liver function tests
    • a significant type of allergic reaction called anaphylaxis
    • a type of allergic reaction called angioedema
    • inflammation of blood vessels that carry blood in the brain

    If experienced, these tend to have a Less Severe expression i

    • confusion
    • altered interest in having sexual intercourse
    • grinding of the teeth
    • a migraine headache
    • double vision
    • dilated pupils
    • eye pain
    • constriction of blood vessels of the extremities
    • a sore throat
    • constipation
    • the inability to have an erection
    • enlarged breasts
    • pain with menstruation
    • erythema or redness of skin or mucous membrane
    • itching
    • hair loss
    • muscle pain
    • cramps
    • low energy
    • muscle twitching
    • diarrhea
    • motion sickness
    • excessive talkativeness

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    Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

    CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.