Molecular pharmacology is a branch of pharmacology that focuses on understanding the molecular mechanisms underlying drug actions. It involves the study of how drugs interact with specific molecules, such as receptors, enzymes, and ion channels, to produce therapeutic effects or side effects in the body. Molecular pharmacologists use a variety of techniques, such as molecular modeling, structural biology, and high-throughput screening, to identify and characterize drug targets and develop novel therapeutics. This field is crucial for the development of safe and effective drugs for the treatment of various diseases and conditions.