Let's make a list of manufacturers and how well their versions of alprazolam perform.
Actavis = bad
Mylan = good
Brand = a little better than Mylan but not worth the extra $100 out of pocket expense
Actavis = bad (releases too quickly, hit a ton of bricks around hour 3, then get anxious again around hour 6)
Brand = TBD
I's used brand Xanax XR before it became generic, around 2006. It worked the whole day. I'm not sure how it will work for me now. I had stopped Xanax XR before because it was about $150/month for 1 mg tablets. I couldn't afford it.
I tossed the Actavis and got the 2 mg Brand at $5/pill. Sheesh. I'm going to find a pharmacy that carries Greenstone.
Finding good generics is annoying. The Brand companies spend all sorts of money and time polishing up their drugs to meet FDA approval and gain trust from the public, while the generic companies seem to freeride off that approval, trust, and research when the patent expires and make an inferior product. The FDA will totally deny this, of course.
I've been searching for the process of getting FDA approval for a generic drug. I have found that it is supposedly as rigorous as getting approval for a brand new, brand name drug. The generics are supposed to prove that they are just as effective as the brand. Then why do some underperform when they reach the market?
This has been my experience with alprazolam IR, XR and Wellbutrin SR, XL.