LSD

Lysergic acid diethylamide (commonly known as acid or LSD) causes expansion and an altered experience of senses, emotions, memories, time, and awareness for 6 to 14 hours, depending on dosage and tolerance. While LSD isn’t considered addictive in the medical community, an LSD trip can have long-term psychoemotional effects; some users cite the LSD experience as causing significant changes in their personality and life perspective. “Flashbacks” are a reported psychological phenomenon in which an individual experiences an episode of some of LSD’s subjective effects long after the drug has worn off.