Avapritinib Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Severe expression

  • Anemia
  • Low Levels Of White Blood Cells

If experienced, these tend to have a Less Severe expression

  • A Skin Rash
  • Confusion
  • Constipation
  • Decreased Appetite
  • Diarrhea
  • Dizziness
  • Excessive Watery Eyes
  • Generalized Weakness
  • Hair Discoloration
  • Intense Abdominal Pain
  • Low Energy
  • Nausea
  • Visible Water Retention
  • Vomiting

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • A Condition With Low Thyroid Hormone Levels
  • A Hole In The Intestine
  • Abnormal Liver Function Tests
  • Ascites
  • Bleeding Of The Stomach Or Intestines
  • Bleeding Within The Skull
  • Chronic Heart Failure
  • Decreased Blood Platelets
  • Escape Of Fluid Into The Lungs
  • Gallstones
  • High Amount Of Bilirubin In The Blood
  • High Blood Pressure
  • Low Amount Of Phosphate In The Blood
  • Low Blood Pressure
  • Low Levels Of A Type Of White Blood Cell Called Neutrophils
  • Overactive Thyroid Gland
  • Sepsis
  • Shingles

If experienced, these tend to have a Less Severe expression

  • A Common Cold
  • A Sleep Disorder
  • Cough
  • Difficulty Sleeping
  • Drug-Induced Hot Flashes
  • Fluid Accumulation Around The Eye
  • Fluid Retention In The Legs, Feet, Arms Or Hands
  • Hallucinations
  • Increased Sensitivity Of The Skin To The Sun
  • Indigestion
  • Joint Pain
  • Memory Loss
  • Mood Changes
  • Nosebleed
  • Puffy Face From Water Retention
  • Taste Impairment
  • Temporary Redness Of Face And Neck
  • Trouble Breathing
  • Urinary Tract Infection
  • Weight Loss

RARE side effects


If experienced, these tend to have a Severe expression

  • A Type Of Brain Function Problem Called Encephalopathy
  • Tumor Bleeding

If experienced, these tend to have a Less Severe expression

  • Erythrodysesthesia Or Tingling, Pain, Redness, And Edema In The Hands And Feet

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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.