Pharmacognosy PDF Notes – Download D Pharmacy 1st Year

If you want to know what pharmacognosy is? What is its history? What has been its past, and what is the present status of pharmacognosy? current situation, and the scope of pharmacognosy. What is the benefit of studying pharmacognosy? If we study pharmacognosy, what benefits will we get, and what knowledge of things will we gain? Or want Pharmacognosy PDF Notes? Then this blog is only for you.

What is Pharmacognosy?

First of all, let me tell you that in this chapter, your history, scope, and present status are included. In history, some people started reading very long histories because the history of pharmacognosy is quite long.

It is given in thick books with a lot of history. So I will tell you that my way of teaching is somewhat different. I do not cover too many things. I cover those things that will help you get better marks.

I will teach only as much history as is necessary so that the MCQs from history are properly covered. Plus, I will give enough history so that if theory questions come in exams, you can write it and get better marks.

So here we will not sit to tell the complete history. If we sit to tell the complete history, it will take 2 to 2.5 hours. Only then will the complete history of pharmacognosy be covered, and it will be boring with no benefit.

Follow my method. I believe more in smart study, which means getting more output with less effort.

Definition of Pharmacognosy

Pharmacognosy is derived from two words

1. Pharma = Drugs
2. Gnosis = Knowledge

Simply: Knowledge of Drugs

• Drugs here mean medicines in the pharmacy field.
• Mainly, the study is of drugs of natural origin (Plants, Animals, Minerals)
• Such naturally derived drugs are called Crude Drugs

History

• Father of Pharmacognosy – Dioscorides
• Father of Indian Pharmacy – Prof. Mahadev Lal Shroff
• Father of World Pharmacy – William Procter Jr.
• Father of Medicine – Hippocrates
• Term Pharmacognosy – C.A. Seidler
• First Pharmacist – Galen
• Babylonians – Effects of medicinal plants
• Ancient Egyptians – Papyrus (1550 BC), 800+ formulas, 700+ drugs
• India – Vedic period, study of drugs ~5000 years ago
• Charaka – 50 herb groups
• Sushruta – 760 medicinal herbs
• Theophrastus & Aristotle – Study of plants and animals
• Carolus Linnaeus – Binomial nomenclature
• Gregor Mendel – Plant hybrids

Present Status of Pharmacognosy PDF Notes

• Pharmacognosy is still important in drug discovery and herbal medicine.
• Knowledge of drugs from Plants, Animals, and Minerals is useful in development.

Scope of Pharmacognosy Notes

1. Isolation of Phytochemicals – Extracting active chemicals from plants
   • Example: Vinca rosea → Vincristine, Vinblastine
2. Biosynthetic Pathway Investigation –
   • Primary metabolites → Plant growth & development
   • Secondary metabolites → Plant survival & medicinal value
   • Example: Alkaloids, Glycosides, Tannins
3. Preparation of Herbal Formulations – Churna, Leha, Arishta
4. Direct Therapeutic Use of Drugs – Example: Vincristine
5. Formation of Novel Medicines – Basis for making new drugs

FAQs

Conclusion

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