Which is better Concerta or Prozac?

These 2 meds are in two completely different classes. Prozac is a SSRI (serotonin reuptake inhibitor) while Concerta is methylphenidate, a stimulant--acts on the dopamine in your brain. Concerta is essentially the same as Ritalin, only it's an extended release version. Prozac is used to treat depression/anxiety, among other uses, while Concerta is used to treat ADHD/ADD. That said, depression/anxiety can have symptoms that mimic the symptoms of ADHD. Lack of focus, concentration, irritability...to name a few. A diagnosis of ADD often comes after trials of SSRI treatment don't work. And also, sometimes these 2 meds are prescribed together, as oftentimes, ADHD and anxiety can go hand-in-hand.