Preventive or therapeutic drugs for various eosinophilia-related diseases containg chymase inhibitors as the active ingredient

摘要

A medicament for the prevention or treatment of diseases involving an increase of eosinophils having a chymase inhibitor, as its effective ingredient, which is a safe medicament for the prevention or treatment of diseases accompanied with an increase in eosinophils, which suppresses the progress of the condition, prevents progress of complications, and improves the quality of life of the patient, wherein a quinazoline derivative having the formula (I): or a pharmaceutically acceptable salt thereof is included.