Monocytes observations were appraised by two assessors. Before starting the study the kappa test was conducted. Each assessor observed 40 monocytes. Intraobserver consistency of the first researcher was 0.88; intraobserver consistency of the second researcher was 0.86 and interobserver consistency was 0.84. To assess the efficacy of the drugs each assessor observed 100 synovial fluid’s monocytes in each preparation before starting and after 4 weeks of treatment.