www.rxhope.com is similar to rxassist, in fact that's where I found rxassist, you just type in a drug name & it lists all the assistance programs for that drug. Another one is
www.xubex.com this one supplies 90 day supplies of lots of generic meds at REALLY reduced prices. They readily accept Medicare, too! Also have a reduced co-pay for some Brand name meds for people who have insurance.