Pharmacological class identification
| Category | Placebo | Cocaine (mg/70 kg) | Nicotine (mg/70 kg) | ||||
|---|---|---|---|---|---|---|---|
| 10 | 20 | 40 | 0.75 | 1.5 | 3.0 | ||
| % | |||||||
| Blank or placebo | 70 | 10 | 10 | 0 | 50 | 0 | 0 |
| Stimulant | 30 | 60 | 60 | 70 | 30 | 80 | 50 |
| Sedative/muscle relaxant | 0 | 10 | 20 | 10 | 10 | 0 | 10 |
| Antihistamine | 0 | 0 | 0 | 0 | 10 | 10 | 0 |
| Opiate | 0 | 20 | 10 | 20 | 0 | 10 | 40 |
| Hallucinogen | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Approximately 40 min after injection, subjects were required to identify the drug effect as being most similar to one of several categories of psychoactive drugs. Data are derived from 10 subjects; each value in the table shows the percentage of subjects selecting a given drug category.