Imaginary.
call the police
They're called 'gateway' drugs - simply because they're often a cheap way to get 'high'. However - they're still addictive and can often lead to the user trying harder (and more expensive) drugs.
You need to call your pharmists or doctor to be sure.
Jeopardy
Call the hospital and ask about rehab programs
API
Then you may have a moral dilemma. Your options range from minding your fences to intervention; a phone call.
If it's illegal drugs: the police.
umm if it's your home, whats the problem? kick him/her out.
No. It originally was used in anesthesia in small amounts. It is a dangerous drug and should never be used except by a physician. Date rape drugs are dangerous and illegal. If you see people using it call the police. If you see someone get it put into their body call 911 and get the person help.
It depends on how much of each drug you take. Further, mixing the drugs together won't make any of the individual drugs more potent. A lethal dose of Seroquel will kill you with or without adding Tylenol or Advil. I suggest you don't try and find out what such a dose is, and contact a professional or call 911 for yourself or a friend if there's any danger.
probably