[PROBLEMS] To provide a therapeutic agent for pain. [MEANS FOR SOLVING PROBLEMS] A preventive agent, a therapeutic agent and/or an agent for inhibiting symptom development for pain comprising a P2Y<SUB>12</SUB> receptor and/or P2Y<SUB>14</SUB> receptor blocker. By administering the P2Y<SUB>12</SUB> receptor and/or P2Y<SUB>14</SUB> receptor blocker, pain, particularly neuropathic pain, for example, cancer pain, postherpetic pain, diabetic pain, HIV related neuropathic pain, pain caused by stone, neuralgia, orofacial pain or pain in disease such as hyperalgesia can be significantly improved.
THERAPEUTIC AGENT FOR PAIN COMPRISING P2Y12 RECEPTOR AND/OR P2Y14 RECEPTOR BLOCKER