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

    • drowsiness
    • dizziness
    • nausea
    • nervousness
    • difficulty sleeping
    • vomiting
    • fast heartbeat

    INFREQUENT side effects

    If experienced, these tend to have a Severe expression i

    • confusion
    • over excitement
    • low energy and weakness
    • gastroesophageal reflux disease

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

    • nightmares
    • constipation
    • fainting
    • sensation of spinning or whirling
    • difficulty sleeping
    • headache
    • nausea
    • vomiting
    • nervousness
    • irritability
    • anxious feelings
    • decreased appetite
    • stomach cramps
    • high blood pressure
    • dry mouth
    • dizziness
    • excessive sweating
    • muscle tremors
    • loss of skin color
    • throat dryness
    • heart throbbing or pounding
    • difficult or painful urination
    • generalized weakness

    RARE side effects

    If experienced, these tend to have a Severe expression i

    • rickets
    • megaloblastic anemia
    • very low levels of granulocytes, a type of white blood cell
    • mental problems
    • slow heartbeat
    • low blood pressure
    • a feeling of throat tightness
    • damage to the liver and inflammation
    • inflammation of the skin due to an allergy
    • a skin disorder with blistering and peeling skin called Stevens-Johnson syndrome
    • skin rash with sloughing
    • hives
    • decreased calcification or density of bone
    • decreased alertness or consciousness
    • memory loss
    • hallucinations
    • a skin rash
    • apnea, a breathing interruption
    • wheezing
    • trouble breathing
    • a significant type of allergic reaction called anaphylaxis
    • a type of allergic reaction called angioedema
    • a hypersensitivity reaction to a drug
    • slow and shallow breathing
    • accidental falls
    • a disorder with excess antidiuretic hormone called syndrome of inappropriate antidiuretic hormone
    • extra heartbeats
    • sinus tachycardia, a type of fast heart rate
    • seizures
    • bloody vomit
    • mental problems from taking the drug
    • ventricular premature beats
    • abnormal heart rhythm
    • a stroke
    • chest pain
    • paradoxical bronchospasm

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

    • addiction to a drug
    • agitation
    • hyperactive behavior
    • loss of muscle coordination
    • complex sleep behaviors like eating or driving while asleep
    • problems thinking clearly
    • dizziness
    • muscle twitching
    • temporary redness of face and neck
    • heart throbbing or pounding
    • an increased need to urinate often
    • irritation of the stomach or intestines
    • anxious feelings
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    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.