The Merck Access Program (MAP) may be able to help answer questions about access and support, including:

  • Benefit investigations and the prior authorization and appeals processes

  • Insurance coverage for patients

  • Co-pay assistance for eligible patients

  • Referral to the Merck Patient Assistance Program for eligibility determination

    (Provided through the Merck Patient Assistance Program, Inc.)

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    Please read the accompanying Medication Guide for WELIREG, including an important warning about harm to an unborn baby, and discuss it with your doctor. The physician Prescribing Information also is available.

    This site is intended only for residents of the United States.

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