Over the last twenty years, we have observed instances where food and/or specific dosage formulations have profoundly affected gastrointestinal transit and oral drug absorption. To study this relationship, the techniques of external gamma scintigraphy have provided a noninvasive method to quantitate gastrointestinal transit and also to assess the in vivo condition of the drug delivery system. To see the result of this study, please download the seven Case Study below.