I need help classifying the following drugs into one of three categories: depressant, hallucinogen, or stimulant. Please give me the response as a numbered list. Here are the drugs I am talking about:

Adipex P
Valium
Klonopin 
Ativan
Bontril
Psilocybin
1. stimulant
2. depressant
3. depressant
4. depressant
5. stimulant
6. hallucinogen