Quinine, the effective medicine in the treatment of malaria, is extracted from :

The radiations used in the treatment of muscle ache are :

The drug obtained from the bark of cinchona was used for treating malaria. The synthetic drug which replaced the natural product is :

Which metal compound is used for treatment of carcinoma?

Which of the following statement is incorrect about Erythromycin?

Opium is of which category medicine?