Simple qualitative tests for rifampicin in urine
Venkataraman, P.; Narayana, A.S.L. and Prabhakar, R. (1988) Simple qualitative tests for rifampicin in urine. Indian Journal of Tuberculosis, 35 (3). pp. 114-116.
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Simple qualitative tests for rifampicin in urine, involving extraction with chloroform well as with benzene were investigated on 50 patients. A positive test result was obtained in 98-100% of the specimens between 3 and l1hours after drug administration by both methods. All specimens collected prior to administration of rifampicin as also specimens collected after ingestion of other anti-tuberculosis drugs were negative by both methods. However, the chloroform extraction method yielded positive reactions in 26% of 27 specimens collected after the administration of clofazimine.
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