Chinese Medicine For Arthritis: Crippling Arthritis – Chronic & Acute Pain: A variety of herbs belonging to TCM have been used in China for centuries for the treatment of rheumatic diseases, including RA. The anti-inflammatory and antiarthritic activities of many Chinese herbs have been validated in experimental models of arthritis and tested in clinical trials in RA patients . However, the majority of clinical trials on herbal products suffer from deficiencies either in the quality of the test product or in the experimental design, or both. Variations in the composition or potency of the herbal formula might in part be owing to geographical or seasonal variations. Limitations in the experimental design often include one or more of the following: small sample size, inadequate control groups or lack of randomization, absence of clearly defined inclusion/exclusion criteria, lack of blinding, inconsistency in the criteria for assessment of the outcomes and inadequate statistical analysis.