Prevalence of adverse effects during the trial, by group
| Adverse effect | Treatment group, no. (%) | |
|---|---|---|
| Cannabis | Placebo | |
| Dizziness | 8 (23) | 1 (3) |
| Headache | 7 (20) | 6 (19) |
| Fatigue | 7 (20) | 2 (6) |
| Nausea | 4 (11) | 1 (3) |
| Feeling “too high” | 2 (6) | 0 (0) |
| Throat irritation | 1 (3) | 1 (3) |