Extracts from Rabbit Skin Inflamed by Vaccinia Virus for Injection (lizaishi) is a therapeutic biologic product containing a variety of globally patented bio-small molecule peptides. It can relieve various symptoms of symptomatic neuralgia or neuropathic pain. Because of its analgesic effect and unique curative effect, it has been widely recognized and applied in China.

On June 15, 2017, the product was issued by the State Food and Drug Administration "National Drug standard Promulgations", quality standard number is: WS4-(S-001)-2017Z.

After more than 20 years of research and development and clinical verification, it has been found that this product is a drug that can regenerate neurons and reduce the damage of inflammation in the body, and has a significant effect on various diseases of central and peripheral nerve injuries.