About 80% of the raw materials for drugs used in the Indian systems of medicine and homeopathy are based on plant resources (Alok, 1991). Over 7,500 species of plants were estimated to be used in folk and tribal, Ayurveda, Siddha, Unani, Amchi (Tibetan) and allopathic health care in India (Shanker & Majumdar, 1997). Some species popularly used by Indian practitioners are shown in Table 7.
Plant Species | Reported number of uses |
Centella asiatica
|
33 |
Pergularia daemia
|
23 |
Aristolochia indica
|
22 |
Ichnocarpus frutescens
|
22 |
Alstonia scholaris
|
19 |
Holarrhena antidysenterica
|
18 |
Trachyspermum ammi
|
16 |
Hygrophila auriculiculata
|
15 |
Trianthema portulacastrum
|
15 |
Semecarpus anacardium
|
14 |
Table 7. Some popular medicinal plants species used in India1
In India, the increasing demands of the pharmaceutical industry, which recorded about 46,000 licensed pharmacies manufacturing traditional remedies, have created a shortage problem in raw material supply. One of the major difficulties being experienced by the Indian systems of medicine is that of obtaining sufficient quantities of medicinal plants for the manufacture of genuine remedies. It is necessary to plan for the large-scale cultivation of medicinal plants and to ensure that they are accurately identified, properly processed, free of adulterants and of acceptable quality (Alok, 1991).