ABSTRACT Background: Racial variation in the clinical presentation of rheumatoid arthritis (RA) and its response to treatment is well known. Ethnicity and associated socioeconomic factors make it necessary to study the effectiveness of the antirheumatic drugs such as sulfasalazine (SSZ) in our RA patients. and to what extent it interacts with the nonsteroidal anti-inflammatory drug (N... https://herbsdailyes.shop/product-category/e-vitamins/