Class C
Phenazepam
Also called: Bonsai, Bonsai supersleep, Fenazepam
A powerful benzodiazepine that provides sedative effects, mainly sold either as a fine white powder or as a liquid.
Some drugs are increasingly cut with dangerous synthetic opioids like nitazenes, which have killed 100s of people in the UK in the past year. This is happening in a wide range of drugs, not just heroin, and you can never really know what is in any street or counterfeit drug. Find out more about the risks and what to do here.
In an emergency
If you or someone else needs urgent help after taking drugs or drinking, call 999 for an ambulance. Tell the crew everything you know. It could save their life.
Call 999What else to do in an emergency
How does it make you feel?
Phenazepam is a powerful benzodiazepine.
- It provides a sedative effect, relieving tension and anxiety, and making the user feel calm and relaxed.
- It can also cause a loss of coordination, dizziness and drowsiness.
- Big doses can make a user forgetful and send them to sleep or potentially put them into a coma.
Worried about phenazepam — yours or someone else's?
Everything you tell FRANK is confidential. We're here to help, not judge.