Name brand meds have patient assistance programs that give you meds for free. Even if you don't meet every criteria apply anyway with a note explaining why meeting that criteria doesn't mean you can afford the med. I've never been turned down and have gotten a number of meds that way.

Rx Outreach | Patient Assistance Program, Discount Prescription Drugs is a good place for generics. They are much cheaper than anything else I ever tried when I was uninsured.