1. Classification and Nomenclature of drugs BY : Dr.Roshini Murugupillai

2. Classification of drugs There is no homogenous system for classifying drugs Drugs may be classified by : Body system e.g. cardiovascular, alimentary Therapeutic usee.g. receptor blockers, enzyme inhibitors Mode or site of action Molecular interaction Cellular site Molecular structure e.g. alkaloid, steroid

4. Paracetamol is N-(4-hydroxyphenyl)-acetamide

5. Propranololis 1-isopropylamino-3-naphthyloxy propan-2-ol

8. Example : INN : Paracetamol BAN(British Approved Name) : Paracetamol United states adopted name (USAN) : Acetaminophen Proprietary names : PANADOL PANAMEX CALPOL CROSIN TYLENOL ATASOL Chemical name : N-(4-hydroxyphenyl)-acetamide