Recently fast dissolving tablet attracted a great deal of attractions. The fast dissolving tablet is useful for geriatric patients are suffering from tremors and dysphasia, Pediatric patients who are unable to swallow, travelling patients suffering from motion sickness and diarrohea and mentally challenged patients, bedridden patients.The fast dissolving tablet used for improving bioavailability of poorly soluble drug due to absorption of drug into oral cavity and also due to pregastic absorption of dispersed drugs into saliva.