Texaphyrins substituted with imidazda are provided.

The invention relates to the field of radiation sensitizers and the use of texaphyrins for radiation sensitization and other conditions for which X-ray radiation has proven to be therapeutic.

A texaphyrin having substituents containing ethoxy groups, methods for using texaphyrins in photodynamic therapy, and cleavage of a polymer of deoxyribonucleic acid are disclosed. The in vivo treatment of tumors and atheroma ...