Nomenclature of Drugs: Generic and Branded Names

Introduction

Drugs have two types of names: generic and branded. Understanding how generic names are assigned can help healthcare professionals and patients navigate the pharmaceutical landscape efficiently.

How Generic Names Are Assigned

Role of International Naming Standards

Generic drug names are standardized by international organizations such as the United States Adopted Names (USAN) Council and the World Health Organization (WHO). These names ensure consistency and prevent confusion in prescribing and dispensing drugs.

Naming Conventions

Generic names typically reflect a drug’s chemical composition, mechanism of action, or therapeutic class. For example:

• Beta-lactam antibiotics end with '-cillin' (e.g., amoxicillin).
• Statins, used to lower cholesterol, end in '-statin' (e.g., atorvastatin).
• Angiotensin II receptor blockers (ARBs) end in '-sartan' (e.g., losartan).

Differences Between Generic and Brand Names

Brand names are given by pharmaceutical companies and are often easier to market. They may suggest effectiveness or reliability but do not necessarily indicate the drug’s composition or function.

Conclusion

Understanding generic drug nomenclature is crucial for safe prescribing, avoiding medication errors, and ensuring transparency in healthcare.