It is intended to provide a pharmaceutical capable of efficiently improving blood circulation in a region where a circulatory disorder occurs and fully preventing or improving tissue damage as a preventive or therapeutic agent for the circulatory disorders in general. As a result of the study of pharmacological effects of a compound in which a porphyrin metal complex is included in albumin, it was found that the compound efficiently improves decrease in blood flow in circulatory disorders and fully prevents or improves tissue damage, thus the invention was achieved. That is, the invention is directed to an agent for improving a circulatory disorder comprising the compound in which a porphyrin metal complex is included in albumin.
