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        Improving Health Improving Lives

        With a steady focus on innovation and sound science, we work to deliver vaccines, medications, and consumer and animal health products that can help millions around the world.

        Today, Merck has more than 50 prescription products in various therapeutic areas, such as cardiovascular disease, respiratory disease, oncology, neuroscience, infectious diseases, immunology and women's health.

        Visit Our Product List A - Z


        Merck has several programs that offer information about product access, co-pay assistance, and medicines or vaccines free of charge for eligible patients in the United States.


        For Health care professionals

        Access tools and materials for patient support, product sample requests, up-to-date professional resources, and other Merck professional sites.

        Health Care Professionals Website

        Report Adverse Experience

        To report an adverse experience with a specific Merck product, please call the Merck National Service Center at 800-444-2080.

        The Science of
        Healthier Animals

        Merck Animal Health is a global leader in the research, development, manufacturing and sale of veterinary medicines, offering one of the widest range of veterinary pharmaceuticals, vaccines and health management solutions and services.

        Learn More