Pharmacology is the branch of medicine that focuses on the study of drugs and their effects on living organisms. It encompasses the understanding of how drugs interact with biological systems, including their mechanisms of action, therapeutic uses, and potential side effects. This field is essential for developing new medications and ensuring their safe and effective use in treating various diseases. In addition to studying the effects of drugs, pharmacology also examines how the body absorbs, distributes, metabolizes, and excretes these substances. This knowledge is crucial for determining appropriate dosages and understanding drug interactions, ultimately leading to better patient care and outcomes.