hallucinogenic

from WordNet (r) 3.0 (2006)

hallucinogenic
    adj 1: capable of producing hallucinations; "LSD is a powerful
           hallucinogenic drug"

from The Collaborative International Dictionary of English v.0.48

hallucinogenic \hal*lu"ci*no*gen`ic\ adj.
   1. capable of producing hallucinations; as, LSD is a powerful
      hallucinogenic drug.
      [WordNet 1.5]