This section is from the book "A Practitioner's Handbook Of Materia Medica And Therapeutics", by Thos. S. Blair. Also available from Amazon: A Practitioner's handbook of Materia Medica and Therapeutics.
Sarracenia Purpurea, Pitcher-Plant. Every few years someone exploits this plant as a sure cure for smallpox. As a matter of fact, I teaspoonful doses of the tincture are laxative and eliminative, somewhat increasing the flow of urine. An infusion of the fresh root is bitter, containing a substance decomposed by drying, and quite reliable observers assert that such an infusion can be freely given during the course of zymotic diseases, modifying their course somewhat and preventing sequelae. It was so used by the Indians of Canada, and was introduced into homeopathic medicine. They use it empirically, more or less, but it is not "homeopathic" to smallpox. It has no established place in therapeutics. For its interesting history, see "Scudder's Specific Medication."