Keytruda (pembrolizumab) — How to Pay Less
Oncology (Immunotherapy) · Last verified 2026-03-22
Current Pricing
Retail Price
$12,500
per month (estimated)
Copay Card Price
$25
per month with commercial insurance
Patient Assistance (PAP)
FREE
if income-eligible
Find Your Savings & Enroll
Find Your Best Savings Option
Answer 4 quick questions to see what you qualify for. Takes about 1 minute.
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Savings Options by Insurance
🏢Commercial Insurance
- Merck Co-pay Assistance Program: Pay as little as $25/mo. (Max annual benefit: $25,000)
🏥Medicare
- 2026 Part D out-of-pocket cap: $2,000/year. Ask about Extra Help/LIS for additional savings.
💵Uninsured / Cash Pay
- Merck Patient Assistance Program: FREE medication if income is below 400% FPL. Call 1-800-727-5400.
- GoodRx, RxSaver, or Amazon Pharmacy discount cards may offer additional savings
How to Enroll
Merck Co-pay Assistance Program
- Check eligibility (commercial insurance required)
- Complete the enrollment form online (takes ~2 minutes)
- Download or print your savings card
- Present at pharmacy with your insurance card
Program valid Sept 2025 through Sept 2027.
Merck Patient Assistance Program
- Confirm income eligibility (below 400% FPL / ~$undefined/yr for individuals)
- Have your prescriber complete and sign the application
- Submit by fax, mail, or online
- Processing typically takes 1-2 weeks
IV infusion; administered in clinic. PAP covers the drug cost.
Key Facts
- Category
- Oncology (Immunotherapy)
- Generic Name
- pembrolizumab
- Dosages
- 200mg IV
- Generic Available
- No (patent expires ~2028)
Other Oncology (Immunotherapy) Medications
Ready to Start Saving?
Use the guided enrollment system above to check your eligibility and enroll in the best savings program for Keytruda. We'll walk you through every step.
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