What are the four types of nature of drugs in pharmacology?
•
4 min read
According to the World Health Organization's Anatomical Therapeutic Chemical (ATC) system, drugs are classified into five hierarchical levels to help standardize clinical practice and research. Understanding the nature of drugs is fundamental to pharmacology, helping scientists and clinicians categorize and predict how a substance will interact with the human body. The four primary ways of classifying the nature of drugs are based on their source, chemical structure, pharmacological action, and molecular target.
