Last modified on January 10th, 2019


Symptoms of the homeopathic medicine CROTALUS HORRIDUS from A Text Book of Materia Medica and Therapeutics by A.C. Cowperthwaite. Find all the symptoms of CROTALUS HORRIDUS

      Natural order – Ophidia. Common name – Rattlesnake. Preparation – The venom is received on milk-sugar and triturated.


Like other serpent poisons Crot. acts primarily upon the cerebro-spinal nerve centers, producing secondarily decomposition of the blood, a destruction of blood fibrine, haemorrhages, ecchymosis, etc. (see Lachesis). The most essential peculiarity of Crot. is the similarity of its poisoning to that induced by yellow fever, in the treatment of which we find its chief use.


Mind. Delirium, especially at night. Torpor, coma. Muttering delirium of typhoid. Delirium, with wide open eyes. Dullness of the intellect; confused speech, disconnected answers. Remarkable weakness of memory (Anacardium, Kreosotum). Delirium tremens, nearly constant drowsiness, but with inability to sleep; also in broken down constitutions. Melancholia, with timidity, fear, anxiety; weeping or snappish temper.

Head Headache extending into the eyes; above the eyes, with oppression. Stitches and pains in temples. Severe pain at center of forehead; dilated pupils; profuse menses. Heavy pressive headache; in occiput. Violent itching of the scalp (Carb. an., Sulphur)

Eyes. Yellow color of the eyes (Chelidonium, Podophyllum, Iodi., Plumb.); also of the whole body. Blue rings about the eyes. Blood exudes from the eye. Dim vision. Burning in the eyes. Aqueous humor, cloudy. Pressure and oppression above the eyes.

Nose. Bleeding from the nose and all the orifices of the body. Epistaxis during diphtheria. Ozoena of syphilitic origin or following exanthemata; sanguinolent discharge.

Face Yellow color of the face (Chelidonium, Podophyllum), or leaden colored.

Mouth. Gums white. Bleeding of the gums. Grinds the teeth at night. Swelling and inflammation of the tongue. Loss of speech from constriction of the tongue and throat.

Throat Throat dry, with thirst. Great difficulty in swallowing anything solid.

Stomach Unquenchable burning thirst. Stomach irritable, unable to retain anything. Hunger, with trembling and weakness. Vomiting of food; of green fluid; of blood; often violent. Painfulness in pit of stomach. Intolerance of clothing about the epigastric region and beneath the hypochondria (Calcarea c., Lachesis)

Abdomen. Swelling of the whole abdomen. Burning pain in the abdomen (Arsenicum). Inguinal glands enlarged; sloughing, unhealthy pus.

Stool and Anus. Bleeding from the anus and other outlets of the body (Hamamelis). Diarrhoea; dysenteric discharges of dark fluid blood involuntary; great debility and faintness.

Urinary Organs. Haemorrhages from the urethra. Yellow reddish-yellow urine, from much bile. Albuminuria in the course of typhoid, diphtheria, etc.; urine from much bile. Albuminuria in the curse of typhoid, diphtheria, etc.; urine smoky form transuded blood.

Female Organs. Dysmenorrhoea; before menses; pain in hypogastrium and down thighs; flow copious for two days, then lingers on and off for four more; heart weak; feet cold.

Respiratory Organs. Hoarseness, with weak, rough voice. Moderate cough, with expectoration of bloody mucus. Difficult respiration. Whooping cough; debility; face blue or pale, remaining so for a time after the paroxysms; epistaxis; puffed face. Oppression in old people with hydrothorax; in fever and ague.

Pulse. Pulse rapid and weak, scarcely perceptible (Aconite, Arsenicum). Palpitation as if heart tumbled about.

Generalities. Extremities inflamed, swollen and gangrenous (Arsenicum, Lachesis). Hands go to sleep, more the left. Trembling of the hands during rest. OEdematous swelling of the whole body (Apis, Arsenicum). Haemorrhages form all the orifices of the body – eyes, ears, nose, mouth, urethra, etc.; also from the gums and from beneath the nails. EAsily tired by slight exertion. General loss of power; the muscles refuse their service. Tremulous weakness all over, as if some evil were apprehended. Paralysis. Yellow color of the whole body (Chelidonium, iodi., Podo).

Sleep Sleeplessness form disproportionate nervous agitation. Drowsy, but cannot sleep.

Skin. Chilblains. Gangrene pending; circulation sluggish.

Fever Dry skin, dark-brown; tongue dry, or tongue coated yellow, with red edges and tip; low muttering delirium; drowsiness; urine dark, scanty; haemorrhagic tendency; vomiting of bile or blood etc.

Compare Apis, Arsenicum, Cantharis, Carb. v., Chelidonium, Elaps, Lachesis, Naja, Tarent.

Antidote. Ammonium, Camph., Alcohol, Radiated heat.


The chief clinical use of Crot. is in the treatment of low, malignant fevers, and adynamic conditions in general, especially when characterized by a haemorrhagic tendency, and putrescence, and whether caused by zymotic or septic poisoning,or by previous low states of the system, blood poisoning predominating. IN all such conditions there is also great prostration; low, muttering delirium; vomiting of bile or blood; tongue, dry, brown, cracked, or yellow, brown in center, red edges; urine scanty, dark, almost black, sometimes suppressed, etc. In this class of diseases, in which it may be indicated, and has been frequently used with success, are: malignant scarlet fever, also with epistaxis, dark red, tumid, or gangrenous tonsils; diphtheria; haemorrhagic measles, eruption dark, confluent; malignant remittent fevers of the south, especially the so-called haemorrhagic malarial fevers; low bilious fevers;p typhoid. The most important remedy for yellow fever. Pyaemia. Septicaemia from poisoned wounds (Dissecting, etc.). Jaundice. Haemorrhages from any orifice of the body, also from the gum and from beneath the nails, resulting from low conditions of the blood. Purpura haemorrhagica. Petechia. Inflammations of a low type. Cerebro-spinal meningitis. Ecchymosis. Effusions into inner organs. Gangrenous tendencies. Low forms of erysipelas, with symptoms above named, especially following poisoned wounds or bites of poisonous insects. Abscesses, boils, carbuncles, etc., with unhealthy appearance, symptoms of blood poisoning.

21 Chilblains, threatening gangrene. Felons with adynamic symptoms. Bad effects from vaccination, pustular eruptions, erysipelas, gangrene, blood poisoning. Has been used in paralysis. Chronic rheumatism, also gonorrhoeal rheumatism. Tetanus (A case cured by injecting the poison). Delirium tremens; also gastralgia, atonic dyspepsia and blood states form long continued abuse of alcohol. Dysmenorrhoea. Ciliary neuralgia and Keratitis, cutting pains around the eyes; worse at menstrual periods. Whooping cough. Otorrhoea. Syphilitic ozoena. Softening of spinal cord.

About the author

A.C. Cowperthwaite

A.C. Cowperthwaite

A.C. (Allen Corson) Cowperthwaite 1848-1926.
ALLEN CORSON COWPERTHWAITE was born at Cape May, New Jersey, May 3, 1848, son of Joseph C. and Deborah (Godfrey) Cowperthwaite. He attended medical lectures at the University of Iowa in 1867-1868, and was graduated from the Hahnemann Medical College of Philadelphia in 1869. He practiced his profession first in Illinois, and then in Nebraska. In 1877 he became Dean and Professor of Materia Medica in the recently organized Homeopathic Department of the State University of Iowa, holding the position till 1892. In 1884 he accepted the chair of Materia Medica, Pharmacology, and Clinical Medicine in the Homeopathic Medical College of the University of Michigan. He removed to Chicago in 1892, and became Professor of Materia Medica and Therapeutics in the Chicago Homeopathic Medical College. From 1901 he also served as president of that College. He is the author of various works, notably "Insanity in its Medico-Legal Relations" (1876), "A Textbook of Materia Medica and Therapeutics" (1880), of "Gynecology" (1888), and of "The Practice of Medicine " (1901).

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