Eligibility Requirements

Income Limit
Merck sets the limit by medicine. For KEYTRUDA and several other medicines (including WELIREG, WINREVAIR, VERQUVO and PREVYMIS) it is a household income of $79,800 or less for an individual, $108,200 for a couple, or $165,000 for a family of four. For JANUVIA, JANUMET, BELSOMRA and LIPFENDRA it is $63,840 or less for an individual, $86,560 for a couple, or $132,000 for a family of four. The single 400% figure and the $43,320 / $58,280 / $88,200 amounts previously shown here do not match Merck's current product pages and have been withdrawn. Alaska and Hawaii residents should call 1-800-727-5400 for their limits. You must be a US resident with no pharmaceutical insurance coverage, though patients may still qualify by attesting to special circumstances of financial and medical hardship. Source: Merck, KEYTRUDA, checked 13 October 2026. Also Merck, JANUVIA.
Insurance Requirements
Must be uninsured or underinsured with no prescription drug coverage for the specific medication.
Shop the savings

Cut the cost around your prescriptions

As an Amazon Associate I earn from qualifying purchases.

Covered Medications

The following medications are covered by Merck Patient Assistance Program:

Keytruda Januvia Janumet Isentress Gardasil 9 Bridion Welireg Lagevrio

How to Apply

Application Steps
  1. Speak with your healthcare provider about Merck Patient Assistance Program. Your doctor, nurse, or social worker can help determine if you qualify.
  2. Gather required documents: proof of income (tax return, pay stubs, or Social Security statement), valid prescription, and proof of U.S. residency.
  3. Submit your application online or by mail. Visit the program website below or call the program hotline for assistance.
  4. Wait for a decision. Approval times and delivery (to your home, your prescriber or a pharmacy) vary by programme, and the programme will tell you how your medicine will arrive.
Apply at Merck Patient Assistance Program →

Check If You Qualify

Use our free Assistance Finder tool to check eligibility for Merck Patient Assistance Program and other programs that may help reduce your medication costs.

Open Assistance Finder
Compare Prices
Find the cheapest pharmacy for Keytruda
Compare pharmacy prices near you on RxGrab

Sources and standards behind this page

Drug coverage in the United States is governed by published rules rather than by any one insurer's summary, and the sources below are the primary ones. They are linked so a reader can check a claim without taking this page's word for it.

This page describes how coverage and formularies work. It is not medical advice, and a reader's own plan documents and prescriber decide what applies to them.

Frequently Asked Questions

Can I get free Keytruda through Merck Helps?

Yes, eligible uninsured patients can receive free Keytruda (pembrolizumab) through the Merck Patient Assistance Program. Given Keytruda's high cost (over $13,000 per month), this program provides significant financial relief for cancer patients.

Does Merck Helps cover Januvia for diabetes?

Yes, Januvia (sitagliptin) and Janumet (sitagliptin/metformin) are covered by Merck Helps. Eligible patients can receive these diabetes medications at no cost.

How do I apply for Merck Helps?

Visit merckhelps.com or call 1-800-727-5400. Your healthcare provider must complete and submit the application along with a prescription and proof of income documentation.

Get Prescription Savings Alerts

Leave your email for updates on patient assistance programs, drug price changes, and new savings opportunities. We have not started sending yet, and we will only email when we do.