Medicinal chemistry is a branch of chemistry focused on the design and development of pharmaceutical compounds. It combines principles from chemistry, biology, and pharmacology to create new drugs that can effectively treat diseases. Medicinal chemists work to understand how different chemical structures affect biological activity, aiming to optimize the efficacy and safety of medications. The field plays a crucial role in the drug discovery process, which involves identifying potential drug candidates and testing their effects. By studying the interactions between drugs and biological targets, medicinal chemists contribute to advancements in healthcare and the development of new therapies for various conditions.