• Define pharmacology, drug, pharmacodynamics, pharmacokinetics, pro-drug, placebo, xenobiotics, pharmacogenomics, toxins, poisons, teratogen and orphan drugs Discuss the rationale of prescribing drugs • Enlist the different sources of drugs. • Describe FDA teratogenic risk categories. • Describe drug’s nomenclature. • Define pharmacopoeia. • Enlist different types of pharmacopoeias. • Describe the important information given in the pharmacopoeias.