, Crude drugs , Official and

Natural Product : Is a chemical compound or substance produced by a living organism – found in nature that usually has a pharmacological or biological activity for use in pharmaceutical drug discovery and drug design . A natural product can be considered as such even if it can be prepared by total synthesis .

Crude drugs :
1 - Is any natural occurring , unrefined substance derived from organic or inorganic sources such as plant , animal , bacteria , organs or whole organisms intended for use in the diagnosis , cure , mitigation , treatment , or prevention of disease in man or other animals .

2 - Are unrefined medications in their raw or natural forms . Prior to the 1950s , every pharmacy student learned about crude drugs in .

3 – Crude drug may be defined as vegetable or animal drug which consist of natural substances that have undergone on other processes than collecting & drying . It safe for health because it have not have any side effect . Those are ignorable .

4- Crude drug generally applies to the products from plant & animal origin found in a raw form . The term also applied to include pharmaceutical products from mineral kingdom in original form and not necessary only of organic origin such as kaolin , bentonite , etc .

Official drugs :
The official drugs are natural substances which recognized and included

Dried leaves of Mint plants and their active constituents ( Menthone , Menthol , methyl acetate …) these compounds are used to treat some stomach & intestinal diseases .
Whole plant Catharanthus and their active constituents (Vincristin and vinblastin ) these compounds are used in treating Cancer diseases .
The juice or extract of un ripped fruit of poppy plants (Papaver sp.) and its active constituents as ( Morphine ) used as narcotic .