Final answer:
Hallucinogens are drugs that produce psychological effects such as euphoria, altered time sense, and perceptual distortions.
Step-by-step explanation:
The substance that produces psychological effects such as a sense of euphoria or well-being, relaxation, altered time sense, and perceptual distortions is hallucinogens.
Hallucinogens are drugs that can cause hallucinations and other perceptual anomalies.
Examples of hallucinogens include LSD, mescaline, nitrous oxide, and psilocybin.