Well, I hope one of them tries to come here.... ~LOL~
Time: It's in the system in 30 minutes and will induce sleep in 1 hour.
Anna was a big girl BUT she was considerably weakened by the other drugs, she was on an empty stomach AND, she might have been running a fever. How long did an overdose take to kill her?? I don't think it was long at all..I'd say 30 minutes.
Where in the room was the evidence of this drug found? No one has ever said. I don't think anyone has mentioned a syringe.