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Materia Medica Viva Volume 1 – Page 245

AMBROSIA ARTEMISIAE FOLIA
Ragweed, Roman Wormwood, Hogweed Natural order: Compositae.
Mode of preparation: For Homeopathic use we use the tincture of the fresh flower heads and young shoots
THE ESSENTIAL FEATURES
Ambrosia belongs to a group of remedies including Aralia, Allium cepa, Arundo, Ars-iod, Dulcamara, Sabadilla, Wyethia etc. which are almost specifics for hay fever.
What characterises this remedy in hay fever, apart from the common symptoms of such a disease, is an intolerable itching on the eyelids and a feeling as if the whole respiratory tract and the head were
stuffed up, blocked. The patient is very sensitive to all kinds of pollen, especially from roses, with an aggravation period that starts around July and has its peak in mid August.
This remedy should be thought of in cases where Dulcamara, Sabadilla, Wyethia, Aralia, Arundo or Ars-iod were prescribed and failed, especially in cases of hay fever that start with catarrh and end with with asthma. Hay fever with watery catarrh, with sneezing, lacrimation and intolerable itching of the eyelids.
Diarrhea especially in summer months in patients with dyspnea or hay fever, allergic patients for whom Dulcamara has failed. The irritation has the tendency to go downwards and affects the trachea and the bronchi causing wheezing, coughing and dyspnea that wakes the patient at about 2 A.M. with an asthmatic attack causing him to sit up in bed for one or two hours.
Clarke writes "Dr. E. T. Marsh and another experimenter suffered severely from symptoms of coryza and hay-fever whilst observing the pollen of this plant. It should therefore be of service in similar affections."
Generalities
Epileptic, clonic convulsions.