Sarah Shelton

Claritin or Zyrtec? Tylenol or Aleve? Carmex or ChapStick?When you’ve got a drippy nose or monster headache, chances are you head to your favored pharmacy in search of relief. Endless over-the-counter treatment options await, sardine-packed on store shelves. For many of us, the which-product-should-I-buy decision is hardly more complex than a guessing game. For some, it comes down to price. For others, it’s brand loyalty. Still, some of us reach for the medication with the most convincing TV com…