What is the drug used within biscuts for seeling property within train?

in trains empire give biscuts. After consuming the being who consume the biscut will become faint. What type of drug/chemical is this. How they are getting if this is toxicWhat is the drug used within biscuts for seeling property within train?
If you are trying to suggest of a drug that makes race faint and not competent to do anything to protect themselves, and someone has done this to you or someone you know you should ask your doctor. If you are wanting this drug to grant someone else, then shame on you and I hope you never find out. You really have need of to clarify this question or procure a life.
sorry I own no idea what u are discussion about
It's not approaching that on British Rail!
I'd use them more often if it be.