Among the most well-liked and effective drug delivery methods of today, intended to sustain therapeutic medication concentrations within the bloodstream for extended lengths of time. In these systems, the medication is progressively released from a matrix after being incorporated into it. By limiting variations in plasma drug concentration, increasing patient compliance, and lowering dose frequency, matrix-based formulations guarantee a regulated and extended drug release. Wax, hydrophilic or hydrophobic polymers, and other substances that alter. The rate of medication release in response to the drug-matrix interaction can be used as the matrix. When gastrointestinal fluids are present, hydrophilic matrices expand and create a gel layer that permits the medicine to diffuse gradually.