Today i was given a scrpit for xanax xr 3mg.Until today i thought they only made it in 2mg form.I guess i was wrong.I chewed it up and it seemed to work great for me,but could only get half my scrpit filled because they wanted $330 for 60.Is xanax sr and xanax xr the same?Plus any info on where i can go to buy aleast the 2mg xr form would be great. thanks for any info