Controlled release refers to a method of delivering drugs or other substances in a way that allows for a gradual release over time. This technique is designed to maintain consistent levels of the active ingredient in the body, improving effectiveness and reducing side effects. Controlled release systems can be found in various forms, including tablets, injections, and implants. The primary goal of controlled release is to enhance therapeutic outcomes by optimizing the timing and dosage of medication. This approach is commonly used in treatments for chronic conditions, such as diabetes and hypertension, where steady medication levels are crucial for managing symptoms effectively.