I had never heard of planet drugs direct (http://www.planetdrugsdirect.com), but was recently pointed to it on facebook. Another samaritan member recommended it for a low cost source of prescription drugs. It looks you can get name brand, generic, and even non prescription meds through them, including inhalers and epi pens. They are an online Canadian pharmacy, and they have free shipping to USA addresses. Medications from Canada can offer big savings, especially if you need a name brand med that doesn’t have a generic option yet. I am only aware of this one, but I know there are others. If you happen to be getting your meds from a trusted Canadian pharmacy please post here in the comments which one it is so we can get a list going for people to consider as options.
update: another member recommended http://www.northwestpharmacy.com as a great Canadian pharmacy choice they are using. It gets them basically a 67% savings with 3 months costing the same as what 1 month costs in the US for the particular medication they need.