What is the difference between Pharmaceutical engineering and Bio-pharmaceutical engineering?

Pharmaceutical engineering focuses on the design, development, and manufacturing of drugs and drug delivery systems, emphasizing chemical processes and technologies. In contrast, bio-pharmaceutical engineering specifically deals with the development and production of biologics, such as vaccines and therapeutic proteins, utilizing biological systems and processes. While both fields intersect in drug formulation and production, bio-pharmaceutical engineering incorporates a deeper understanding of biological processes and often involves working with living organisms or cells.