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Essence of Materia Medica – page 196

It also has the graceful, rhythmic, involuntary motions of chorea—particularly affecting the upper extremities. Again, the emphasis is on involuntary, uncontrolled conditions of the nervous system.
Although relatively less striking, Stramonium does have some effects on the physical level. Some highlights; headaches which are aggravated by sun, worse from heat, worse from lying and worse from motion, located usually in the occiput but also may be in the forehead. Basilar meningitis from suppressed otitis media. Strain of the eyes from prolonged studying. Strabismus if caused by brain fever or injury. Chronic abcesses, boils, and septic states, particularly when accompanied by spasms and convulsions. It has severe pain in the left hip (bold type in the Repertory). A peculiar cough triggered by looking into a bright light or into a fire. A sense of suffocation when water is poured on his head. In old men, retention of the urine due to spasm of the bladder.
So, in comparision with the other remedies, the point to emphasize is the malicious, violent, aggressive, uncontrolled eruption of the unconscious, particularly in chronic and sustained manias. Stramonium is the most violent, then Belladonna and finally Hyoscyamus. The Belladonna violence is mostly in acute states. During the Belladonna delirium we see that the patient wants to climb up the walls of the room. He gets up from bed, with a very high fever, and you see him struggling to climb up the walls in a wild state. The delusions of Belladonna also should be stressed, especially on closing the eyes. Striking at people is also a strong symptom of Belladonna. Hyoscyamus is more passive in its mania, being violent when moved by extreme jealousy or when pushed to an extreme. Desire to strike is a strong symptom of Hyoscyamus. The rage in Tarentula occurs more in paroxysms. The Veratrum state is as active and energetic as Stramonium, but not usually as violent except in extreme circumstances.