Simulated Intestinal Fluid is widely used in pharmaceutical research and development, particularly in drug dissolution testing. It mimics the conditions of the human intestinal environment, allowing scientists to evaluate how well oral medications dissolve and are absorbed in the small intestine. This fluid is essential for predicting the bioavailability of drug products and plays a critical role in formulation development, quality control, and regulatory testing. It helps assess the performance of immediate-release, delayed-release, and modified-release dosage forms under physiologically relevant pH and enzymatic conditions.