Scilex Holding Company operates as a biopharmaceutical firm primarily engaged in creating and distributing non-opioid treatments for individuals suffering from acute and chronic pain conditions. Its flagship product, ZTlido 1.8%, is a prescription-only topical lidocaine formulation designed to alleviate neuropathic pain, specifically that associated with post-herpetic neuralgia, a type of nerve pain occurring after a shingles infection. The company's development pipeline also features SP-102, known as SEMDEXA, a viscous corticosteroid gel administered via epidural injections. This candidate is currently in Phase 3 clinical trials, targeting lumbosacral radicular pain. Another investigational drug, SP-103, aims to treat low back pain and is progressing through Phase 2 clinical trials. Additionally, SP-104, an innovative low-dose, delayed-release naltrexone hydrochloride formulation, is in Phase 1 clinical development for managing fibromyalgia. Scilex Holding Company is headquartered in Palo Alto, California, and functions as a subsidiary of Sorrento Therapeutics, Inc.