Scilex Holding Company, a biopharmaceutical company, focuses on developing and commercializing non-opioid therapies for patients with acute and chronic pain. The company's principal product includes ZTlido 1.8%, a prescription lidocaine topical product for the relief of neuropathic pain related with post-herpetic neuralgia, which is a form of post-shingles nerve pain. It also offers SP-102 or SEMDEXA, a viscous gel formulation of corticosteroid for epidural injections that is in a Phase 3 clinical trial to treat lumbosacral radicular pain; SP-103 for the treatment of low back pain, which is in Phase 2 clinical trails; and SP-104, a novel low-dose delayed-release naltrexone hydrochloride formulation for the treatment of fibromyalgia that is in Phase 1 clinical trials. The company is headquartered in Palo Alto, California. Scilex Holding Company is a subsidiary of Sorrento Therapeutics, Inc.