Sustained-release formulations are designed to release a drug slowly over an extended period, rather than all at once. This approach helps maintain consistent drug levels in the bloodstream, improving therapeutic effects and reducing side effects. These formulations can be found in various forms, such as tablets, capsules, or injections. The technology behind sustained-release formulations often involves special coatings or matrix systems that control the rate of drug release. This method is commonly used in medications for chronic conditions, such as diabetes or hypertension, where steady drug levels are crucial for effective treatment.