Physiological Action. - Spigelia Anthelmia produces vomiting, giddiness, stupor, dilated pupils, diarrhoea, subsultus tendinum, irregular pulsations throughout the body, palpitations, dyspnoea, convulsions, and death. When cattle eat it, they perish in violent agony.

Therapeutic Action. - S. Anthelmia is useful in rheumatic pericarditis and endocarditis, in rheumatic ophthalmia and facial neuralgia. In rheumatic fever, with little inflammatory swelling of the joints, but where the pain quickly shifts from one joint to another, I have found this medicine of great service. It appears to have the power of centering the inflammation in certain joints and steadying it there. In palpitations arising from mitral and aortic disease, attended with considerable dyspnoea, the symptoms are much relieved by tincture of the same. It is also employed as a vermifuge.

Preparation And Dose. - None officinal. A tincture (1 - 8) may be given in doses of from five to twenty minims.