An overview of novel and controlled drug delivery systems

The therapeutic effectiveness of any drug can be achieved by delivering the drug to the body in a suitable form through a proper route. Minimal drug degradation and improved bioavailability are the key factors considered in drug delivery. The drugs associated with the problems related to the low half-life would require frequent administration of the drug and hence controlled release dosage forms are beneficial. Targeted delivery systems release the drug at a specific site, avoid the availability of drug at unwanted sites and hence minimize the adverse reactions. The controlled and targeted drug delivery systems extend the product life cycle and also possess good market potential. The present article reviews the work done by our research group on some of the novel drug delivery systems.