Abstract

Recent advances in drug pharmacokinetic and pharmacodynamic behavior now allow for a more logical approach to the creation of an ideal drug delivery system. It is already apparent that multidisciplinary efforts will mostly be responsible for future success in drug delivery research. Any therapeutic agent that can be made safer and more effective while using an enhanced drug delivery method represents a step forward in the treatment of human diseases as well as significant marketing potential for pharmaceutical companies. The best drug delivery systems send a predetermined dose of medication to the intended site at the right time and place, depending on the etiology and physiological requirements of the body. Traditional pharmaceutical dosage forms are unable to regulate how quickly a medicine is delivered to the target site. Because higher doses frequently result in serious side effects during treatment, novel drug delivery systems (NDDS) are carriers that keep the drug concentration in the therapeutic range for longer periods of time and also, in addition, may deliver the content to the targeted site if so desired and as needed. As a result, the distribution of drugs in non-target tissue and body fluids necessitates therapeutic doses that could greatly exceed the amount required in target cells.