Laboratory animals that were taught to use stimulants did not use hallucinogens on their own initiative.

But ... I don't use hallucinogens, nor do I think any artists do.

You don't know how I talked, persuaded, coaxed them. . . . Listen, they use hallucinogens.

Community impact: "1.2 million people aged 14 years and over indicated they had used hallucinogens in their lifetime, with 116,400 using hallucinogens in the preceding 12 months."

He founded the Neo-American Church and sought protection for the right to use marijuana and hallucinogens as religious sacraments.

If all these people had used hallucinogens without developing visual problems, then the prevalence of serious visual problems in this larger group would be 0.66%.

The resulting feeling is similar to using hallucinogens, producing erratic and uncontrollable behaviors.

It found that when younger children used, the more often they use them, the more likely they were to use cocaine, heroin, hallucinogens and other illicit drugs.

But not all abused drugs produce tolerance or withdrawal in those who use them, notably PCP, solvents, marijuana and hallucinogens.

For the record: I've never used hallucinogens.