ABSTRACT:
In many developing nations of the world, large numbers of people still rely on traditional healers and medicina plants to meet their daily primary healthcare needs. Many medicines of plant origin had been used since long time reported without any adverse effects It is therefore essential that efforts should be taken to develop new drugs of plant origin, which will be economically feasible, as well as with lesser side effects. Bangladesh has its favorable climatic condition and been blessed with immense natural resources including unexplored medicinal plants. A good number of them have already been claimed to possess medicinal properties. The medicinal values of these plants are due to some chemicallyactive substances that produce specific pharmacological action on the human body. The most important bioactive substances are alkaloid. tannin, flavonoid and phenolic compounds etc. The various biological properties of some Bangladeshi medical plant extracts and some isolated compounds were investigated in animal models and reported.