hypnotica
Hypnotica is a term that is not widely used as a stand-alone scientific concept in English, but it appears in various contexts as a descriptive or titular form related to hypnosis and trance states. In English, hypnotic is the standard adjective, while hypnotica tends to occur as a proper name, a brand, or a non-English/foreign-language form used in titles or marketing to evoke a sense of suggestion or altered perception.
Etymology and linguistic usage
Hypnotica derives from the Greek root hypnos, meaning sleep, combined with the adjectival suffix -tica. In Romance
Within science and medicine, the standard terms are hypnosis and hypnotic, with no separate technical meaning