Clinical trial, with positive findings, on 35 patients with kidney failure, who were receiving blood dialysis three times a week at a hospital in Italy. Approximately half of the participants were randomly allocated to receive a homeopathic medicine called China rubra; the others received a dummy pill (placebo). They were not told which treatment group they were in. After a period of 4 weeks, there was an improvement in weakness, lethargy and headache in the patients who received homeopathic treatment compared to those who received placebo.
Saruggia M, Corghi E (1992). Effects of homoeopathic dilutions of china rubra on intradialytic symptomatology in patients treated with chronic haemodialysis. British Homoeopathic Journal; 81:86-88.