Introduction Of Pharmacognosy || By Sumit || CH-01, L-01

Introduction Of Pharmacognosy Pharmacognosy, known initially as materia medica, may be defined as the study of crude drugs obtained from plants, animals, and mineral kingdom and their constituents. There is historical misinformation about who created the term pharmacognosy. According to some sources, it was C. A. Seydler, a medical student at Halle, Germany, in 1815; he wrote his doctoral thesis titled Analectica Pharmacognostica. However, recent historical research has found an earlier usage of this term. The physician J. A. Schmidt (Vienna) used that one in his Lehrbuch der materia medica in 1811, to describe the study of medicinal plants and their properties. The word pharmacognosy is derived from two Latin words pharmakon, ‘a drug,’ and gignoso, ‘to acquire knowledge of ’. It means ‘knowledge or science of drugs’. Crude drugs are plants or animals, or their parts which after collection are subjected only to drying or making them into transverse or longitudinal slices or peeling them in some cases. Most of the crude drugs used in medicine are obtained from plants, and only a small number come from animal and mineral kingdoms. Drugs obtained from plants consist of entire plants, whereas senna leaves and pods, nux vomica seeds, ginger rhizome, and cinchona bark are parts of plants. Though in a few cases, as in lemon and orange peels and colchicum corm, drugs are used in fresh conditions, and most of the drugs are dried after collections. Crude drugs may also be obtained by simple physical processes like drying or extraction with water. Therefore, aloe is the dried juice of leaves of Aloe species, opium is the dried latex from poppy capsules and black catechu is the dried aqueous extract from the wood of Acacia catechu. Plant exudates such as gums, resins and balsams, volatile oils, and fixed oils are also considered crude drugs. 🥼*Pharma Destination*🏥 This is a time to grow our Pharmacy through *Technology*👩‍💻 We are trying our best to make a revolution in pharmacy.🥳 There are some link of digital platforms 👇🏼👇🏼👇🏼👇🏼 1. YouTube channel - @pharmadestination 2. Instagram account -   / pharmadesti.  . 3. Facebook Page-   / pharmadestin.  . 4.*Twitter Account*-   / pharmadestinat1   5. Telegram Group Link- https://t.me/+9UMhqFZNKY45MjA1 Our Application- https://play.google.com/store/apps/de... 😇Please join with *Pharma Destination*😇 #pharmacognosy #pharmacognosydpharm1styear #pharmacognosy4thsemester #pharmacognosy5thsemunit1 #pharmacognosychapter1 #pharmacognosy5thsem #pharmacognosy5thsemunit5 #pharmacognosy4thsemesterunit1