Rheumatoid arthritis & medication

All the medications that your husband is taking are anti-inflammatory drugs and they are used for treating rheumatoid arthritis. Naproxen is a non-steroid anti-inflammatory drug (NSAID) used as a painkiller in treating RA. Immunomodulators (cyclosporine, azatioprin, cyclophosphamide…) are the major medicines used to treat rheumatoid arthritis. Naproxen relieves pain by calming joint inflammation. The symptoms you’ve mentioned (stiff neck, swollen right hand and lower arm, feels lousy) could be side effects of Naprosyn (naproxen). You can consult his rheumatologist for further advice.