This course is a continuation of MedChem 500 and covers concepts of drug-receptor interactions, signal transduction and pharmacogenomics, drug classes that affect the autonomic nervous system and histaminergic system and drugs classes used in GI disorders, pain and inflammation, coagulation, hyperlipidemia and vitamins. Basic concepts discussed include pathophysiology of related disorders, mechanisms of action, SAR, DOis, adverse effects and clinical use.