Quality Control of Herbal Drugs

Therapeutic potentials of herbal drug ranges from parts of plants, through simple extracts to isolated active constituents. There has been a resurgence of interest on plants and plant derived products as a source of medicine in the last few decades. Herbal products have occupied a major part in curing different human ailments, but what about the quality of those products? Certain of these drugs have been known and are being used by man for many centuries, while others are still being isolated and evaluated. Dealing with natural products, the most vital and potent therapeutic importance is the medicinal plants - the noun is common, the adjective is common place and their juxtaposition introduces a concept that is not always easy to define, as it is the same for their quality and purity. Herbal drugs have become one of the totems in this era of phytotherapy. The medicinal plants have enormous commercial potentials throughout the globe. Along with the increased interest in herbal medicine