Various treatments have been reported on RA. Iontophoretic administration was at-tempted to 146 out-patients with RA. As a result, the pain improvement rate of RA was assessed as 100%-70% (excellent), 69%-40% (good), 39%-20% (fair), and below 19% (poor) in 12%, 34%, 42%, and 12% of the patients respectively. The swelling improvement rate of RA was assessed as excellent, good, fair, and poor in 23%, 26%, 38%, and 12%, repectively. When this method was compared with conventional injection to joint, the effectiveness of this method showed less improvement on pain, but the same effectiveness on swelling. This method is easy to be handled and no side effect nor pain has been observed, therefore, it is a useful treatment for RA patients.
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