Asarum canadense - Wild Ginger
"Dose: from one-half to one dram of the specific medicine.
Therapy: In acute nasal catarrh, where the discharge has not appeared, or has been suppressed, with the usual symptoms of headache and general oppression, muscular aching and general discomfort, it is given with good results. Inflammation of the conjunctiva, from taking cold, where there is profuse and constant lachrymation, will be relieved by it.
In painful or longstanding spasmodic affections of the pulmonary region, as in whooping cough or bronchitis, it will be advantageous and, at the same time, it influences the digestive apparatus, correcting nausea, cholera and diarrhea, which may be present.
Dr. Newton considered its most important influence to be exercised upon the generative apparatus. It is a stimulant to the muscular structure of the womb and to the ovaries, and is abortive and an active parturient, and may be given to good advantage in recent cases of amenorrhea from cold. During labor, when the pains are excessive, and when there is extreme erythism, a few drops of the tincture may be put in half a glass of water and a teaspoonful administered every five or ten minutes. It will induce quiet and render the labor more natural. It works in perfect harmony with small doses of cimicifuga.
In metrorrhagia and in menorrhagia, where the flow is steady but not free, where there are cutting pains in the abdomen and groin, extending down the thighs, with aching in the back, the patient nervous and irritable, this remedy will restore the flow to its normal proportions, will relieve the nerve tension and subdue pain. Violent pain in the small of the back on the approach of the menstrual epoch, which seems to interfere with the breathing, is said to be a diagnostic indication for this remedy.
Where there is melancholy and nervous disturbance in the early part of pregnancy, so that miscarriage seems to be threatened, a teaspoonful of asarum every two or three hours will sometimes restore the patient to normal condition."
(Finley Ellingwood: The American Materia Medica, Therapeutics and Pharmacognosy, 1915)