Can someone give me some info on these pills?

The pills I have rn are green bars and have S-90-3 engraved on it. I've been told it's a generic form of xanax but will the effects be the same, better, or worse? I couldn't find what I was looking for online so I'm coming here to ask. Thanks.

Quick update: I took Them in school passed out in two classes. Second class I wouldn't get up and someone has to come get me and take me to the nurse I could barley work and had to leave early