How long will xanax stay in your system for a urine test?

How long will xanax stay in your system for a urine test?
If U are hydrated that day it might not even show up if it's a cheap random test. That's happened to me before. Depending on Ur size about 3 days is how long xanax stays in you. If u ever have any doubt before a wiz quiz take a multivitamin and drink as much water as you can. Try to go 7-9 times before they get theirs. The vitamin keeps color in it.
Best of luck
15 years.
72 hours to be safe.