Question

Which of the following drugs was not isolated from a natural source? Options :- Quinine Morphine Isoniazid Artemisinin​

Answer 1

Isoniazid is the drugs that was not isolated from a natural source.

Explanation:

Isoniazid was synthesised in the laboratory.

The other three compounds were derived from natural sources:

Quinine - isolated from the bark of the cinchona tree.

Morphine - isolated from the seed pods of poppies.

Artemisinin - isolated from a Chinese plant.