Higher doses, the sort we were going to give, produce a hallucinogenic effect.

Some people inhale wild lettuce for a recreational "high" or hallucinogenic effect.

He grew a sort of plant said to have hallucinogenic effects.

I said, wondering about the possible hallucinogenic effects of egg salad.

The hallucinogenic effects of certain drugs are portrayed by different means.

Medicine forest has a certain species of trees whose fragrance is believed to be having hallucinogenic effects.

The darkness tended to perpetuate the hallucinogenic effects of flush.

These 11 short stories "exhibit a dazzling surface of hallucinogenic special effects."

I've heard there is no hallucinogenic effect in licking a toads back.

Its hallucinogenic effects include feelings of peacefulness, acceptance, and empathy.