- Galen (A.D 130 - 200) was a prominent roman (of Greek ethnicity) Physician, urgeon, and Philosopher.
- Developed Principles of preparing and compounding medicinal agents.
- sought to restore humeral balances within a patient by the use of medicine of opposing qualities.
- E.g. inflammation would be treated with cucumber, a cool drug.
- Galenical Pharmacy : The first pharmacy, described the process of creating extracts of active medicinal from plants.