LAPATINIB Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

  • a skin rash
  • high amount of bilirubin in the blood
  • erythrodysesthesia or tingling, pain, redness, and edema in the hands and feet
  • abnormal liver function tests

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

  • stomatitis, a condition with painful swelling and sores inside the mouth
  • inflammation and infection of nail cuticle
  • backache
  • difficulty sleeping
  • low energy
  • decreased appetite
  • nausea
  • vomiting
  • generalized weakness

INFREQUENT side effects

If experienced, these tend to have a Severe expression i

  • trouble breathing

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

  • indigestion
  • hair loss
  • a skin rash resembling acne
  • dry skin
  • pain in the arms or legs
  • pain
  • headache
  • nosebleed

RARE side effects

If experienced, these tend to have a Severe expression i

  • torsades de pointes, a type of abnormal heart rhythm
  • prolonged QT interval on EKG
  • ventricular arrhythmias, a type of abnormal heart rhythm
  • left ventricular heart failure
  • a type of inflammation of the lung called interstitial pneumonitis
  • liver damage
  • erythema multiforme, a type of allergic skin reaction
  • a skin disorder with blistering and peeling skin called toxic epidermal necrolysis
  • a skin disorder with blistering and peeling skin called Stevens-Johnson syndrome
  • excessive diarrhea
  • a significant type of allergic reaction called anaphylaxis
  • lung tissue problem

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

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

    Drug Survey

    Are you currently using lapatinib?

    This survey is being conducted by the WebMD marketing sciences department.

    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.