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Often used for: Hodgkin lymphoma, B-cell lymphoma, melanoma, hepatocellular carcinoma, other cancers

What is pembrolizumab?

Pembrolizumab is a programmed cell death-1 (PD-1) blocking antibody that enhances the immune system's ability to attack cancer cells. It is administered by IV infusion, often every 3 weeks, with close monitoring of vital signs and lab work.

Possible side effects

  • Fatigue or weakness
  • Bone, joint, or muscle pain
  • Loss of appetite or weight loss
  • Abdominal pain
  • Diarrhea or constipation
  • Rash, itching, or dry skin
  • Cough or shortness of breath
  • Thyroid problems
  • High blood sugar or low sodium
  • Low blood counts
  • Flu-like symptoms (fever, chills)
  • Nausea or vomiting
  • Swelling or headache
  • Dizziness or sleep problems
  • Cold-like symptoms
  • Peripheral neuropathy
  • Liver or kidney problems
  • Infusion-related reactions
  • Serious complications after allogeneic stem cell transplant
  • Not all patients experience these side effects. Report all symptoms.

Tips for families

  • Inform the nurse immediately if symptoms occur during infusion.
  • Premedications like diphenhydramine and acetaminophen may be recommended.
  • Follow care team guidance to manage nausea, diarrhea, or constipation.
  • Use birth control during treatment and for 4 months after therapy.
  • Tell the doctor if pregnant or breastfeeding.