All study related procedures, restrictions, duration, dates and timings, information on the study formulation and confidentiality of subject data were explained clearly to the volunteers by clinical personnel at the time of obtaining informed consent. Volunteers who signed the consent form and showed"their willingness to participate in the study were enrolled. Volunteers who satisfied the inclusion and exclusion criteria and found to be healthy on physical examination with laboratory investigation values within reference limits were considered eligible to be admitted into the study.