M. S. Neeharika, B. Jeevana Jyothi


Drug delivery systems that precisely control the release rates or target drugs to a specific site have an enormous impact on health care system. In the modern era of treatment many new approaches have been evolved for more efficient administration of drugs. One such approach is the administration of drugs at times at which they are most effective and best tolerated. Chronotherapeutics is the approach in which in vivo availability of drug is timed to match rhythms of disease or disorders in order to optimize therapeutic responses and minimize side effects, which makes it a profound and purposeful delivery of medications in unequal amounts over time (during the 24h). Chrono therapeutic drug delivery systems (ChrDDS) are gaining importance in the field of pharmaceutical technology as these systems reduce dosing frequency, toxicity and deliver drug that matches the circadian rhythm (CR) of that particular disease when the symptoms are maximum to worse. Eventually, the benefit goes to the patient due the compliance and convenience of the dosage form. Various technologies such as time controlled, pulsed, triggered and programmed drug delivery devices have been developed and extensively studied in recent years for chrono pharmaceutical drug delivery. This review specially focuses on ChrDDS and various dosage forms, techniques that are used to target the CR’s of various diseases.

Keywords: Chrono therapeutic drug delivery systems, Circadian rhythms, Therapeutic response, Time controlled, Pulsed, Triggered and programmed technologies.

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Journal of Critical Reviews
Vol 2, Issue 4, 2015 Page: 31-40

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Authors & Affiliations

M. S. Neeharika
Institute of Pharmaceutical Technology, Sri Padmavathi Mahila Visva Vidyalayam, Tirupati. Tirupati 517502, Andhra Pradesh

B. Jeevana Jyothi


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