[flash]

Costco does have great prices; drugstore.com is also fairly good. Their discounts are largely based on the volume sales they do, relative to other chains that are individually owned franchises.

You need to be very careful in interpreting prices based on ingredients manufactured in other countries. There is, obviously, a current political debate on the cost and quality of generic drugs provided by other countries and availble by mail to US consumers.

There can be other differences in generic drugs outside of the active ingredient itself which effect both efficacy and sensitivity, to name a few. While the FDA is fairly stringent in limiting differentials in generics, this is not true across the board. You also must include the cost of producing, stabilizing, and binding the active ingredients, removing common allergens, pressing the little pill into the little form without it falling apart.

There are great ways to decrease your prescription costs, but don't misrepresent the situation.