Nutmeg contains myristicin and elemicin which were both considered psychoactive chemicals.

Nicotine, the primary psychoactive chemical in tobacco and therefore cigarettes, is addictive.

Nicotine, the primary psychoactive chemical in cigarettes, is addictive.

The primary psychoactive chemical in coffee is caffeine, which acts as a stimulant.

DMB was identified as the major psychoactive chemical in musk willow.

It is not known what psychoactive chemical(s) exist in the Coleus blumei plant, as there has been very little research on the subject.

An ordinary pharmaceutical factory worker, he was exposed to psychoactive chemicals from a fire.

Most of us take psychoactive chemicals to keep us in a properly paranoid mind frame during working hours.

Just for the record," he said stiffly, "they shot me so full of their psychoactive chemicals that I was out of it.

"I get enough psychoactive chemicals in my bloodstream from the embassy coffee service during Tuesdaymorning staff meetings."