Drug delivery systems are engineered technologies designed to transport therapeutic agents to specific sites in the body, optimizing their absorption, distribution, and release while minimizing side effects. These systems play a crucial role in enhancing drug efficacy, reducing dosing frequency, and improving patient compliance, especially in the treatment of chronic and complex diseases.
Traditional delivery methods such as oral, injectable, transdermal, and inhalation have been revolutionized by advanced platforms like controlled-release formulations, liposomes, microspheres, and implantable devices. These innovations allow for sustained drug release, targeted delivery, and reduced systemic toxicity.