Thanks Bullderdash, that helped allot.
Ok, I have another teaser ready, and I've implemented some things suggested.
You can now type "drink <potion> or "use <potion>".
This is the lab room, the room right after the cell room, there's a machine.
When you type "use machine" a dialog will pop up asking you to enter a sequence.
1314 - Gender Change potion
12567 - BE potion
The machine will drop the potion in the room, you have to use "get" to get it.
The output is still only there for testing. It will be replaced with something more juicy.
I'd also like to ask if people would prefer the measurements to be metric or imperial. Please pm me your suggestions