| 摘要 |
The present invention relates to an agent for preventing and/or treating neuropathic pain comprising a 2-[(substituted-inden-7-yloxy)methyl]morpholine of the formula (I) or a pharmaceutically acceptable salt thereof as an active ingredient. The invention is useful for providing an excellent agent for preventing and/or treating neuropathic pain, and particularly useful for providing an agent for preventing and/or treating allodynia, hyperalgesia, hyperesthesia, spontaneous pain, cancer pain, trigeminal neuralgia, phantom limb pain, postherpetic neuralgia, fibromyalgia, low back/leg pain, thalamic pain, entrapment (compressive) peripheral neuropathy, atypical facial pain, pain accompanying spinal cord injury, pain accompanying multiple sclerosis, pain accompanying chemotherapy-induced neuropathy, cancer pain on which an analgesic effect of a narcotic analgesic such as morphine is insufficient, pain accompanying diabetic neuropathy, and the like.
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