Drug nomenclatue
- 2. NOMENCLATURE OF DRUGS • The term drug nomenclature implies that there are several names that can be used to identify a drug • Drugs have three different names; 1. Chemical name 2. Non proprietary name 3. Proprieatry name
- 3. CHEMICAL NAME • A chemical name is given when a new chemical entity (NCE) is developed . • It is the name given to drug in accordance with rules of chemical nomenclature established by international union of pure and applied chemistry. • It is useful for chemist or technical personnel as it provides the precise arrangement of atom and atomic groups in the molecule.
- 4. CONT… • It is not used to identify the drug in a clinical or marketing situation. • The chemical name is not suitable for use in prescribing.
- 5. NON PROPRIETARY NAME • It is a short name given to a drug that is not subjected to proprietary rights. • The non proprietary name should always be concise and meaningful . This is used in discussion and textbook . • There are 2 classes of non proprietary names; 1. Approved names 2. Official names
- 6. CONT… APPROVED NAME: The name is given to drug by bodies like United Stats Adopted Name Council (USAN) and British Approved Name (BAN) soon after its introduction. The name sometimes referred to as a generic name however this term is used to designate a chemical or pharmacological class of drugs such as Sulphonamide , Penicillin.
- 7. CONT… OFFICIAL NAMES: It is the name approved by the National Pharmacopeia Commission and included in the official book i.e. Pharmacopeia . The official must be identical with approved name.
- 8. PROPRIETARY NAME • It is the name given to a drug by the pharmaceutical firm which sells the drug. • Thus a single drug is sold under many proprietary names by different firms . • They are written with capital initial letter and are often further distinguished by superscript R in circle . • Clinicians usually described drugs by their proprietary names.
- 9. EXAMPLE PARACETAMOL • CHEMICAL NAME: N-(4-hydroxyphenyl)acetamide. • NON PROPRIETARY NAME: Approved name: British Approved Name (BAN):Paracetamol United States Approved Name (USAN): Acetamorphine OFFICIAL NAME: Acetamorphine • PROPRIETARY NAME: Pandol , Calpol Adol
- 10. ASPIRIN • CHEMICAL NAME: Acetyl salicylic acid • NON PROPRIEATRY NAME OR GENRIC NAME : Aspirin • PROPRIETARY NAME: Dispirin
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