Drugs are categorized by their processing methods, mutual aversion and incompatibility (mutual fear and hostility), detoxification properties, and synergistic or antagonistic relationships. This section comprises one volume.
[Anonymous *Nanhai Yaopu* (Record of Medicines from the South Sea)] *Yiwen Lue* (Bibliographic Outline) records seven volumes (the Song dynasty catalog lists it as one volume). The text is lost.
Zhang Yuxi stated: *Nanhai Yaopu* does not state the author's name. It miscellaneous records southern medicinal materials, detailing their places of origin (commanderies and counties) and therapeutic efficacy for diseases, without a systematic order. It appears to have been composed by someone in the late Tang dynasty. The original work consisted of two volumes.
[Li Shi's *Haiyao Bencao* (Compendium of Marine Medicines)] *Yiwen Lue* records six volumes. The text is lost.
Li Shizhen stated: *Haiyao Bencao* is identical to *Nanhai Yaopu*. It comprises six volumes. It was authored by Li Xun of the Tang dynasty. Li Xun was likely a person during the reigns of Emperor Suzong and Emperor Daizong. The book collects and describes marine medicinal materials, with content that is quite detailed and clear.