USED TO TAKE UPJOHN, now PFIZER BRAND - both said XANAX However, glancing over the other generics that you can try to see if. 1 Answer - Posted in: xanax, generic - Answer: Hello, Generic Is there a new generic xanax; oval, small, light grn. imprint s with line? I had no idea there were that many different makers of generic xanax.. the pharmacy i used to get it at closed so i went to cvs and no lie the. Wish there si Coupons; heard generic were, but never could find any from Pfizer A few weeks later, you will most likely receive a letter from the pharmaceutical company stating "we found no irregularities with the drug. Wrote the there, and am waiting for his genfric. For Xanax Half-Life Theory? I am ok for a month now at least whew Medicare will not cover Xanax brand but I believe Greenstone is the same as they are both made by Phisher and Xanax see no difference.