Answer

2

Explanation

(1) Is the chemical structure of Morphine which is an effective sedative and painkiller? It is extracted from Poppy plant (Papaversomniferum).
(2) Is the chemical structure of Cannabinoid molecule which is obtained from Cannabis sative and known for their effects on the Cardiovascular system.
Atropa belladonna and Datura plants have hallucinogenic properties.
Cocaine is obtained from Erythroxylum coca and it interferes with the transport of dopamine in the CNS.
Heroin is a derivative of morphine and is a depressant and slows down body functions.