RESUMEN
BACKGROUND: Curcumin is an ingredient in the turmeric plant that gives yellow color to dishes and is used as a spice. It has been used locally/topically and systemically in the treatment of diseases in Far Eastern societies, especially in Indian and Chinese traditional medicine. Curcumin is a natural substance that does not show toxic properties in overdose. In addition to its anti-inflammatory, anti-oxidant, anti-neoplastic, anti-viral, anti-microbial, anti-angiogenic properties, platelet aggregation, apoptosis, and wound healing have been demonstrated in different studies. In recent years, it has been used as a radiosensitizing agent and a radioprotector in radiation therapy. Although curcumin has low bio-availability, it seems to be the ideal molecule due to its low molecular weight, high activity in inhibiting the growth of tumor cells and protecting normal tissues from the side effects of radiation. PURPOSE: Curcumin in combination with radiotherapy was discussed in the light of the literature.