1. Drug
Drug – According to w.h.o Drug is any substance or
product that is used or intended to be used to modify or
explore physiological systems or pathological states for
the benefit of the recipient.
Nature of drug – all drugs are chemical entities. Most are
organic compounds while some are purely inorganic
compound. Most of drugs are solid and some are liquid
and few are gaseous.
2. Source of drugs
1. Plants
2. Animals
3. Microbes
4. Minerals
5. Synthetic chemistry
6. Biotechnology
- These are sources of drugs