XIL CR 82.5 mg is a controlled-release analgesic tablet containing Flupirtine Maleate 82.5 mg, designed for effective relief of moderate to severe pain without the sedative or addictive properties of opioids. It acts as a selective neuronal potassium channel opener (SNEPCO) with additional NMDA receptor antagonistic properties, making it especially useful for treating musculoskeletal pain, neuropathic pain, and post-operative pain.