Pharmaceutical development of ondansetron tablets.

Ondansetron tablets contain ondansetron base as the hydrochloride dihydrate, lactose, microcrystalline cellulose, starch and magnesium stearate. Tablets sampled at the beginning and end of the compression process have good content uniformity and drug content, showing that there is no segregation or loss of the drug substance during tabletting. The release of drug substance is related to the tablet disintegration time. Tablets with disintegration times of 3 and 10 min release 85% of the drug substance in approximately 6 and 20 min respectively. Satisfactory bioavailability has been demonstrated. The tablets have good stability, and have a shelf life of 2 years when stored below 30 degrees C.