GHB, ketamine, and rohypnol are considered these types of drugs Stimulants
Narcotics
Depressants
Hallucinogens

Hallucinogens

Explanation:

Club drugs (GHB, Ketamine, and Rohypnol) are a group of diverse substances that are used at nightclubs, concerts, bars, and parties. They are often associated with “raves,” all-night dance parties. Club drugs are typically depressants, sometimes with hallucinogenic properties, that lower inhibition, impair judgment, and are associated with sexual risk taking. Users often combine these drugs with alcohol or other illegal substances, which can dangerously accelerate their effects. In recent years, use of club drugs among teens has been on the decline, according to the annual Monitoring the Future report.