Anticholinergics can cause sexual arousal. They can also cause delirium and death.
Don't take anticholinergics without knowing what they are. Don't experiment with any drug without having researched it. Some drugs are less suitable for experimenting than others. If you insist; there are precautions that have been discussed.
As for tripping in a group; you are either in or out. You should never accept someone overdosing, and then later lock the person up. Insist on a sensible approach (in this case; lower dose) , or deal with (In this case; protect her from harm, and minimize her suffering) the consequences.
The initial question has been answered. I think I summed the thread up (not the first one to try).
Unless someone has anything new to add I suggest this thread is closed.