Today's Merck is working to help the world be well. Merck is a global health care leader with a diversified portfolio of prescription medicines, vaccines, consumer and animal health products. In Canada, Merck markets more than 530 pharmaceutical, consumer and animal health products. Merck is a leader in a broad range of areas such as cardiology, infectious diseases, respiratory, vaccines, women's health and sun care, and is focused on expanding offerings in other areas, including virology, oncology and diabetes.