Janssen Pharmaceutica is a pharmaceutical company headquartered in Beerse, Belgium. It was founded in 1953 by Paul Janssen.
In 1961, Janssen Pharmaceutica was purchased by New Jersey-based American corporation Johnson & Johnson, and became part of Johnson & Johnson Pharmaceutical Research and Development (J&J PRD), now renamed to Janssen Research and Development (JRD), which conducts research and development activities related to a wide range of human medical disorders, including mental illness, neurological disorders, anaesthesia and analgesia, gastrointestinal disorders, fungal infection, HIV/AIDS, allergies and cancer. Janssen and Ortho-McNeil Pharmaceutical have been placed in the Ortho-McNeil-Janssen group within Johnson & Johnson. – menos