If you're pressing bars you can mark them however you like. But most of the xanax that hits the US is pressed. The markings have little to do with it.
Xans have a very distinct taste to them, and the more they are filled the more powdery it is.
The issue is that a bunch of fuckheads have been cutting pressed bars with fentanyl (and killing people in the process).
Basically, if ANYONE HERE feels the need to do that shit, ask the seller if they have done them, and past that try a small amount at a time. If it tastes weird/unlike alprazolam confront whoever sold that shit.
Imo, an opiate high and a benzo high are very, very different. If you feel like you didn't get what was sold to you I would caution against taking more and consider calling out whoever sold that shit to you.
That said, in swim's experience, he hasn't come across anything laced with fent.
Not really trying to pollute the board with this shit but I feel like it's something that everyone needs to be aware of - drug happy or not.
Edit: for anyone here with kids, weed is one discussion. Xanax is a very different discussion. While it's relatively harmless if you know what you're doing, if you start abusing it to get high all of the time it can get ugly quick. Couple that with the fact that you don't know what is going into each pill and treat it as such.