Lapatinib Tablet Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Severe expression

  • Abnormal Liver Function Tests
  • High Amount Of Bilirubin In The Blood
  • Rash
  • Tingling, Pain, Redness And Edema Of Hands And Feet

If experienced, these tend to have a Less Severe expression

  • Backache
  • Chronic Trouble Sleeping
  • Diarrhea
  • Feel Like Throwing Up
  • Feeling Weak
  • Inflammation And Infection Of Nail Cuticle
  • Loss Of Appetite
  • Low Energy
  • Painful, Red Or Swollen Mouth
  • Throwing Up

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Trouble Breathing

If experienced, these tend to have a Less Severe expression

  • Dry Skin
  • Hair Loss
  • Head Pain
  • Indigestion
  • Nosebleed
  • Pain
  • Pain In Arms Or Legs
  • Skin Rash Resembling Acne

RARE side effects


If experienced, these tend to have a Severe expression

  • Erythema Multiforme
  • Failure Of The Left Ventricle Of The Heart
  • Heart Ventricle Rhythm Problem
  • Interstitial Pneumonitis
  • Life Threatening Allergic Reaction
  • Liver Damage
  • Lung Tissue Problems
  • Prolonged QT Interval On EKG
  • Severe Diarrhea
  • Stevens-Johnson Syndrome
  • Toxic Epidermal Necrolysis
  • Very Rapid Heartbeat - Torsades De Pointes

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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.