Janssen Pharmaceutica is pharmaceutical company established in Belgium in 1953 by Paul Janssen. Its headquarters are located in Beerse, in the Campine region of the province of Antwerp, Belgium. It was created not as a subsidiary of a chemical factory but solely with the aim of conducting pharmacological research. The company's stated aim is the continuous development of better drugs to improve the quality of life. In 1961 Janssen Pharmaceutica was purchased by Johnson & Johnson corporation and is now part of the company's worldwide research and development centre, the Johnson & Johnson Pharmaceutical Research and Development (J&J PRD) 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, allergies and cancer. Janssen and Ortho-McNeil Pharmaceutical have been placed in the Ortho-McNeil-Janssen group within Johnson & Johnson. Its Chairman and Managing Director is the baron Ajit Shetty.

Janssen Pharmaceutica N.V. ist ein belgisches pharmazeutisches Unternehmen in Beerse.

Janssen Pharmaceutica N.V. is een Belgisch farmaceutisch bedrijf, in Beerse opgericht door dokter Paul Janssen (1926-2003). Het is een onderdeel van de Amerikaanse groep Johnson & Johnson, de derde grootste farmaceutische groep van de wereld.

Johnson & Johnson é uma empresa estadunidense fundada em 1885, especializada na produção de farmacêuticos e utensílios médicos. Suas ações fazem parte da lista industrial de Dow Jones.