Sustained release refers to a drug delivery system designed to release medication gradually over an extended period. This approach helps maintain consistent drug levels in the bloodstream, improving therapeutic effects while minimizing side effects. It is commonly used in various medications, including those for chronic conditions like diabetes and hypertension. The technology behind sustained release can involve different formulations, such as coated tablets or gelatin capsules. These systems are engineered to dissolve slowly, allowing for less frequent dosing compared to immediate-release formulations. This can enhance patient compliance and overall treatment effectiveness.