GUANFACINE HCL ER Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

    Sorry, we have no data available. Please contact your doctor or pharmacist.

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

    • low blood pressure
    • dry mouth
    • drowsiness
    • inducing of a relaxed easy state
    • dizziness
    • difficulty sleeping
    • low energy
    • weight gain
    • nausea
    • low energy and weakness
    • intense abdominal pain

    INFREQUENT side effects

    If experienced, these tend to have a Severe expression i

      Sorry, we have no data available. Please contact your doctor or pharmacist.

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

      • altered interest in having sexual intercourse
      • nightmares
      • indigestion
      • constipation
      • the inability to have an erection
      • itching
      • decreased appetite
      • headache
      • heart throbbing or pounding
      • vomiting
      • involuntary leakage of urine
      • an increased need to urinate often
      • generalized weakness
      • irritability

      RARE side effects

      If experienced, these tend to have a Severe expression i

      • suicidal behavior
      • suicidal thoughts
      • a type of brain function problem called encephalopathy
      • atrioventricular block, a type of slow heart rhythm disorder
      • slow heartbeat
      • abnormal functioning of the sinus node of the heart
      • skin rash with sloughing
      • seizures
      • chest pain
      • a hypersensitivity reaction to a drug
      • fast heartbeat

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

      • blurred vision
      • pink eye
      • Raynaud's phenomenon, a condition where blood vessels constrict too much with coldness or stress
      • skin inflammation
      • hair loss
      • joint pain
      • muscle pain
      • leg cramps
      • sensation of spinning or whirling
      • muscle tremors
      • taste impairment
      • a skin rash
      • visible water retention
      • loss of skin color
      • trouble breathing
      • a feeling of pins and needles on skin
      • a feeling of general discomfort called malaise
      • anxious feelings

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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.