1. Gothoskar AV. Biopharmaceutical classification system of drugs [online]. Pharmaceut Rev. Availablen from: URL: http:// www.pharmainfo.net/reviews/biopharmaceutical-classification-drugs. [last cited on 2005 Feb 12].
2. Center for Drug Evaluation, USFDA. Guidance for industry: Waiver of In vivo bioavailability and bioequivalence for immediate release solid oral dosage forms based on a biopharmaceutics classification system. August 2000.