LANCASTER, Calif.--(BUSINESS WIRE)--Simulations Plus, Inc. (AMEX:SLP), a leading provider of simulation and modeling software for pharmaceutical discovery and development, announced that it has released two new powerful predictive models that extend and enhance the capabilities of its class-leading ADMET Predictor software product. ADMET is a pharmaceutical industry acronym meaning Absorption, Distribution, Metabolism, Excretion and Toxicity.