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: Includes products like Honey , Beeswax , Cod Liver Oil , and Insulin .
: The most abundant source (e.g., Tulsi leaves, Cinchona bark, Clove buds).
: Increasingly important for novel compounds like Cytarabine (from sea sponges) and Carrageenan (from seaweed). 3. Classification of Crude Drugs pharmacognosy lecture notes ppt
In modern terms, it is the systematic study of the physical, chemical, biochemical, and biological properties of —unprocessed materials from plants, animals, or minerals used for medicinal purposes. 2. Sources of Crude Drugs
Medicinal substances are primarily harvested from four natural origins: : Includes products like Honey , Beeswax ,
This comprehensive guide summarizes essential typically found in professional PPT presentations for pharmacy students. It covers the core foundations, classification systems, and evaluation methods for drugs derived from natural sources. 1. Introduction to Pharmacognosy
The term was first coined in 1815 by C.A. Seydler in his work Analecta Pharmacognostica . It is derived from two Greek words: Pharmakon : Drug Gnosis : Knowledge (or Gignosco : to acquire knowledge) Sources of Crude Drugs Medicinal substances are primarily
Because thousands of natural products exist, they are categorized into several systems for easier study: