The present invention relates to a pharmaceutical composition for preventing or treating neuronal damage and neurological diseases, and more particularly, to a pharmaceutical composition for preventing or treating neuronal damage and neurological diseases containing, as active ingredients, any one or two or more compounds selected from a group consisting of the compound of chemical formula 1, the compound of chemical formula 2, and the acceptable salts thereof.The pharmaceutical composition repairs nerve tissue damaged by herpes zoster to reduce the acute pain caused by herpes zoster, prevents postherpetic neuralgia, and enables a fundamental treatment through the recovery of nerve tissue in the postherpetic neuralgia. Further, the pharmaceutical composition can be effectively used for neuronal damage, including sciatic nerve crushing damage or the like, in a neuropathy including diabetic neuropathy or the like and for neuropathic pain, as well as for a variety of diseases caused by nerve tissue damage, such as brain diseases including strokes or the like.
