Resumen
The present invention relates to use, in bulk, of a compound with photovoltaic effects for producing a phototherapy drug for preventing or treating a medical disorder such as, for example, a tumour or cancer, an inflammatory and/or autoimmune disease, a medical disorder associated with angiogenesis or with an abnormal or unwanted myoendothelial proliferation, fibrosis or a medical disorder associated with fibrosis, and for preventing or treating a dermatological disorder or disease or for treating an infectious disease of viral, fungal, bacterial or parasitic origin.