I like the old stuff better than the new stuff? Subjective experiences of new psychoactive substances.
The International journal on drug policy February 1, 2017 Allison J Matthews, Rachel Sutherland, Amy Peacock et al. 23 citations
Frequent psychostimulant consumers in Australia rated stimulant-type new psychoactive substances (NPS), such as mephedrone and methylone, less favorably than ecstasy and cocaine in terms of pleasurable effects and likelihood of future use. DMT, a hallucinogenic tryptamine, showed a similar profile to LSD for pleasurable effects and future use likelihood, but its negative acute and comedown effects were rated lower. Hallucinogenic phenethylamines like 2C-B had a negative profile similar to LSD but were rated as less pleasurable and less likely to be used again. The potential for expanded use of stimulant-type NPS may be lower than for common stimulants, while DMT's potential may be higher relative to LSD due to fewer negative effects.