Welcome to RISG Pam. I hesitate to recommend any new prescription drugs as you are taking a lot already. Taking both sulfasalazine and methotrexate sounds unusual. Keeping in mind that I am not a Doctor and my knowledge is extremely limited, I would suggest that you might want to do some reading on both of these drugs.
Many people take just one or the other.
We have a link library that helps people find information about prescription drugs. We also have a very active listserv with over 400 members. You might wish to ask if anyone there is taking both drugs. I hope you find RISG very useful. I hesitate to recommend any new prescription drugs as you are taking a lot already.