PREPARATION & EVALUATION OF ORODISPERSIBLE TABLET CONTAINING ASPIRIN BY SUBLIMATION METHOD

Orodispersible tablets are uncoated tablets which when taken into the mouth, get easily dispersed within 3 min before swallowing. they are also known as orally disintegrating tablets, mouth-dissolving tablets, rapid dissolving tablets fast-disintegrating tablets, fast-dissolving tablets. In this work, sublimation process was used to prepare orodispersible tablets of aspirin by formulating various batches using different concentration of sodium starch glycolate, camphor and cross povidone. An effort was made by using two modes, first, to increase water uptake for the fast dispersion by creating pores by sublimation methods in tablets and second, use of super disintegrantes like sodium starch glycolate to minimise disintegration time and promote fast dispersing ability. Prepared formulations were evaluated for weight variation, content uniformity, friability, hardness, wetting time, disintegration time, in vitro drug release and interaction study by differential scanning calorimetery. The best formulation was selected on the basis of evaluation results.