Some RA drugs will go up more than a 100% in next few months...you can look for coupons online from drug stores like CRS, Walgreens, and print out,then ask doctor to send a prescription to them if Walmart or other places have hiked price...
I check every few months and Target consistently has the best price. There is a Target about a hundred yards from where I live, and the pharmacists recognize me on sight when I walk in to pick up a refill. The whole transaction usually takes but a minute or two. That is hard to beat.