The author claims, with no supporting evidence, "the truth is that we seem to be experiencing a cultural shift in our relationship to medications - perhaps evidence of the creeping medicalization of life". While acknowledging there may be other factors, it is still a huge jump to make such a claim.
On a side not one of the areas mentioned is "a 20% increase in migraine drugs". One of the reasons for this in my own anecdotal unscientific experience is that medications have improved substantially in the last few years with fewer side affects. People who were simply unable to avail of medication a few years ago can now do so, improving the quality of their lives.