Nowadays the development of new drug delivery systems plays a major role in pharmaceutical industries. The drug delivery practice has been altered in last years and even many advanced innovations happened in recent times. Newer drug delivery technologies are largely influencing the current medical practice. Alterations of a current drug into a new drug delivery technology can positively changing the bioavailability, safety and efficacy of the drug and also it can produce improved patient compliance. At this time, a number of pharmaceutical companies are forwarded to initializing multiple drug delivery technologies for creating excellent advantages, prolonging patent and better outcome for their marketed products. One of the main challenges in newer drug delivery is, huge molecules are rapidly dissolved in the blood volume and they have a lined capacity to cross barriers. Drug delivery technologies can be performed on many available dosage forms like tablets, capsules, pills, injections, suppositories etc. Conventional drug delivery may produce problems regarding oral bioavailability. This can be improved by introducing newer drug delivery techniques like oral controlled drug delivery, site targeted delivery, rate programmed drug delivery, feedback regulated delivery, fastly disintegrating dosage form by oral route, topical and nasopulmonary drug delivery
S. Murali, 2, NAIR, S. R. E. E. J. A. C., and Anupriya, “Drug delivery research: Current status and future prospects”, Int J Pharm Sci Rev Res , vol. 40, no. 1, pp. 94-99, 2016.