IC50

IC50 stands for "half maximal inhibitory concentration." It is a measurement used in pharmacology to determine how effective a substance, like a drug or a chemical, is at inhibiting a specific biological function or process. Specifically, IC50 refers to the concentration of that substance needed to reduce a particular response or activity by 50%. A lower IC50 value indicates a more potent inhibitor, meaning that less of the substance is required to achieve significant effects. This measure is important for understanding drug efficacy and safety in research and development.