Homeopathic Materia Medica by Farrington
We now proceed to study the PAPAVERACEAE, an order of plants from which we obtain Opium, Sanguinaria Canadensis, and Chelidonium majus. As an order, they act on the circulation of the blood, tending to produce narcosis of a greater or less degree by exciting a fulness of the bloodvessels of the brain. The effect thus produced on the sensorium ranges all the way from sleepiness to stupor. This, you know, is eminently true of Opium, and, to a less degree, of Sanguinaria and Chelidonium. We will now take up the study of these drugs SERIATIM.