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. 2023 Mar 22;7:100149. doi: 10.1016/j.dadr.2023.100149

Table 2.

Prevalence of self-reported adverse effects of specific drugs relative to all adverse effects reported.

n %
Alcohol 421 47.6
Cannabis 168 19.0
Cocaine 80 9.0
Ecstasy 55 6.2
Ketamine 27 3.1
Poppers 25 2.8
Psilocybin 17 1.9
Amphetamine 17 1.9
LSD 15 1.7
Synthetic Cathinones 10 1.1
Benzodiazepines 9 1.0
Methamphetamine 9 1.0
GHB 8 0.9
2C Series 6 0.7
Prescription Opioids 5 0.6
Synthetic Cannabinoids 4 0.5
Tryptamines 4 0.5
Fentanyls/Novel Opioids 2 0.2
NBOMe 2 0.2
Heroin 1 0.1

Note. Prevalence is relative to the 885 separate drug-related effects reported by 622 participants (31.9% of the full sample). Poppers refer to amyl or butyl nitrites.