Lactucarium is the milky fluid secreted by several species of wild Lettuce, usually from the base of the stems. Lactucarium is also known as lettuce opium, because of its opium like properties. More specifically, Lactucarium bears physical resemblance to opium and can be consumed or smoked. It is said that consuming "Lettuce Opium" can lead the user to a state of sedation and euphoria, as well as being a form of Analgesic (painkiller).
"Lettuce Opium" was used by the Ancient Egyptians, and was introduced as a drug in America as early as 1799. It has since faded from popularity, although the America Hippie Movement used it as a legal mind-altering drug or psychotropic.
Lactucarium has never been thoroughly and satisfactorily investigated in relation to its therapeutical influences: indeed, various experimenters differ in their views on this point, some asserting it to be a stimulant and others a sedative.
Dose of lactucarium in pill or powder, which is the most efficient mode of administration, from 5 to 20 grains; of the tincture, 30 to 60 drops; of the alcoholic extract, 1 to 5 grains.
Lactucarium is liable to be adulterated with bread crumbs.