Experiences - Oxy Xanax and Vodka

[Fish21]

I tried the search function and didn't see anything that related completely. Forgive me if this is in the wrong place.

One of my dearest friends, whom which has never done a drug in her life, recently met up with some guy she found online (yep, I lectured her about that one...) and they ended up doing a bar and a half of xanax, snorted 45mgs worth of oxy, and had 4 shots of vodka over the course of the night.

After the last shot she laid on the bed and tried to play a video game, and that's the last thing she remembers, says it was about midnight.
She remembers nothing but occasional segments which she claims thought were dreams. When she woke up the next afternoon her new "friend" told her they had showered together and done all kinds of stuff, but she remembers none of it. (she woke up naked and had damp hair, so he wasn't BSing her...). And according to this guy apparently she actually went to sleep at 5:00am, so this is a good 5 hour gap she can't recall.

Is this typical for the combination as aforementioned?

I think she was date raped. She said she did not pour the last shot of vodka she took and it was about 10 mins after that she blacked out, but she had also done 2 lines of oxy just prior to the black out too...

Oh, she thinks I should mention she also had a full rockstar energy drink too if it makes a difference.
It's been a couple days and she still feels woozy/hungover and not much of an appetite. That normal too?

Would like to hear about your experiences with the combination or similar combination to see if they may relate.
Thanks