The purpose of this study is to compare the single-dose oral bioavailability of Ondansetron 8 mg orally disintegrating tablets of Ohm Laboratories (A subsidiary of Ranbaxy Pharmaceuticals, USA) with Zofran ODT® 8 mg orally disintegrating tablets of Cardinal health, UK for GlaxoSmithKline, USA in healthy, adult, human, male subjects under fed condition.