So if homeopathy works, is it feasible that science could take a known pharmaceutical, potentize it and use it to treat the opposite problem of what it was originally designed for? One study says yes. In the late 1980s, the pharmaceutical cyclosporine — used in organ-transplant patients to suppress the immune system and thereby prevent organ rejection — was diluted and potentized homeopathically. It was then given to AIDS patients in hopes of having the opposite effect of its original use and boosting the immune system. In its homeopathic form, the drug raised T-cell counts in these patients.

— Human Energy Press, 1986, vol. 148