Ado-trastuzumab Emtansine: Uses, Side Effects, and Drug Interactions

Brand names: KADCYLA

# Ado-Trastuzumab Emtansine (KADCYLA) Overview Ado-trastuzumab emtansine is a cancer medicine used to treat certain types of breast cancer. This drug is designed to find and attack cancer cells that have a specific protein called HER2. It works by combining two different medicines in one—one part targets the cancer cells, and the other part delivers a powerful drug directly to them. This helps destroy cancer cells while limiting damage to healthy cells in the body. Like all medicines, ado-trastuzumab emtansine can cause side effects and requires careful monitoring by doctors. Patients taking this drug should tell their doctor about all other medicines they're using, especially certain antifungal and antibiotic drugs, since these can interfere with how the cancer medicine works in the body. Common side effects can include tiredness, nausea, and hair loss. Because this is a strong medicine, patients will need regular check-ups and blood tests while receiving treatment to make sure it's working safely and not causing serious problems.

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Most Reported Side Effects (FAERS)

  • DISEASE PROGRESSION771 reports
  • FATIGUE743 reports
  • NAUSEA726 reports
  • OFF LABEL USE632 reports
  • DIARRHOEA594 reports
  • DEATH536 reports
  • THROMBOCYTOPENIA467 reports
  • NEUROPATHY PERIPHERAL449 reports
  • PLATELET COUNT DECREASED430 reports
  • HEADACHE428 reports

Source: FDA Adverse Event Reporting System (FAERS). Voluntary reports do not establish causation.

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SafeCheck provides drug interaction information from FDA-approved product labeling (openFDA). This is for informational purposes only and is not medical advice. Always consult your healthcare provider before making medication decisions.