Pharmaceutical scientists are professionals who study and develop new medications. They work to understand how drugs interact with the body and how to improve their effectiveness and safety. Their research often involves chemistry, biology, and pharmacology, which is the study of how drugs affect living organisms. These scientists play a crucial role in the pharmaceutical industry, collaborating with other experts to create new therapies for various diseases. They also conduct clinical trials to test the safety and efficacy of new drugs before they can be approved for public use by regulatory agencies like the FDA.