Last modified on January 10th, 2019


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

      Synonym. Lachesis mutus. Natural Order. Ophidia. Common name. Bushmaster Snake of Brazil. Preparation. Triturations of the venom.


Acts upon the cerebro-spinal system, and more especially upon the pneumogastric. The nerve centres and poisoned, and as a result, prostration, convulsions and unconsciousness ensue, while from the influence of the pneumo-gastric we obtain irritable conditions of the throat, larynx bronchi and heart, yet not passing into distinct inflammation. As a further result of the poison, the blood becomes inoculated, decomposition sets in, the fibrin of he blood is destroyed and we have, resulting ecchymoses, haemorrhages asthenic inflammations, abscesses, malignant inflammations, gangrene, pyaemia; and with all, and as a result of all, a general typhoid condition. the chief characteristic of Lachesis is the aggravation of all its symptoms after sleep.


Mind. Memory weak (Agaricus, Ambr., Anacardium, Kreos,m Mercurius, Natr. mur., Nux moschata, Phosphorus ac.); makes mistakes in orthography (Lycopodium). Confusion as to time. Great mental activity,, ideas crowd rapidly (Coffea c., Cinchona). Loquacious; in the evening. Constantly changing from one subject to another (Cimic.(, with mocking jealousy, satire, ridiculous ideas, frightful images (Hyos,). Indifference. Great sadness and anxiety on awaking in the morning (Natr. mur.). Proud (Platina, Stramonium); jealous (Apis, Hyoscyamus); suspicious. Thinks herself under superhuman control.

Head. Vertigo in the morning on waking (alum., Phosphorus, Nitr. ac.); momentary, on closing the eyes (Thuja). Headache, extending into the root of the nose (Mercurius iod.). Headache with flickering before the eyes. Rush of blood to head. Heat in head. Pressive headache, with nausea. Headache in left frontal eminence; deep internal. Headache over the eyes and in the occiput, every morning on rising. Throbbing headache over right eye. One-sided headache pains intense, extend to neck and shoulders, with tension in muscles. Neck stiff (Rhus tox); tongue paralytic. Pressing bursting pains in the temples;l better when like lead, in the occiput (Carb v., chel.); can scarcely raise left temple from vertex down, and left side of face on touch or moving muscles, a sensation as if sunburnt. Numbness and crawling on left side of head, when touched or on moving the muscles in the evening and morning with crawling. Hair falls off (Graphites, Mercurius, Nitr. ac., Phosphorus, Sepia, Sulphur)); worse during pregnancy; aversion to sun’s rays (Belladonna, Gloninum, Natr. carb.).

Eyes. Dimness of vision; black flickering before the eyes; often makes reading difficult. Fog before the eyes (Kali often makes reading difficult. Fog before the eyes (Kali iod., Mercurius, Pulsatilla, sulph.); bright blue rings, filled with fiery rays, about the fright; zigzag figures. Sensitive to light. Lachrymation. Sticking, drawing pains in and above the eyes,.

Ears Pain in ears, with sore throat, Tearing extending from the zygoma into the ears. Whizzing, as from insects in the ear. Hearing diminished.

Nose. Coryza, preceded by headache (Hydras.); and stiffness of nape; discharge water, with red, sore nostrils; scabs in the nose (Mercurius) Nosebleed; blood thick and dark. Nosebleed in amenorrhoea, typhus, etc. Paroxysms of sneezing in any asthma. Many symptoms end with catarrh.

Face. pale, earthy, gray color of face (Arsenicum). Erysipelatous inflammation of the face (Belladonna, Graphites, Hepar s., Rhus tox.). heat and redness of the otherwise pale face. Tearing in zygoma, extending into the ear. Left side of face and lower jaw swollen and sensitive to touch. Trifacial neuralgia, left side, orbital, heat rubbing up into the head. Feeling of stiffness of the malar bone, coming from the cervical glands. Itching of the face.

Mouth. Toothache, tearing, jerking, sticking (Pulsatilla); often extending though jaw to ear;l periodic; after waking; after eating (Antim crud., Nux v., Staph); from warm and cold drinks. Feeling as if the teeth were too long when bitings them together. gums bleeding, swollen; spongy. Tongue dry, red, black, stiff, cracked (Baptisia, Belladonna, Naja, Rhus tox),. swollen and covered with blisters. Difficult speech; tongue heavy (Acid Muriaticum); cannot open mouth. Tongue trembles when protruded, or catches behind the teeth. Burning pain and rawness in mouth. ,. then aphthous (Borax., Hydras, Mercurius, Iodi)

Throat. Hawking of mucus, with rawness in the throat at night on waking, without thirst (Apis,. Nux moschata, Pulsatilla) throat seems swollen, as if two large lumps came together, on empty swallowing food. Feeling of a crumb of bread left sticking in the throat, obliging her to constantly swallow. tonsillitis, worst on lets side. choking when swallowing; or when swallowing, pains from throat to ear (ambr., Belladonna, Kali bichromicum, Hepar s.); neck sensitive to touch Z(Apis)(. Pain and soreness begin left side of throat. Liquids cause more difficulty in swallowing than solids (Belladonna). External throat very sensitive to touch (not painful, but an uneasy sensation); in evening on lying down, with suffocative sensation; even to touch of linen.

Stomach. Appetite variable; at times good, at others no appetite at all. Thirst, with dry tongue and skin. Desire for oysters. Eructations, which relieve; amounting to vomiting. dyspepsia; worse after eating (Cinchona, Nux v., Pulsatilla). STitches extending into the chest Gnawing in stomach; relieved after eating,but returns when stomach gets empty. Painless gnawing. Pressure in stomach; after eating; with weakness in knees. Great discomfort of having clothes tight around the waist (Bryonia, Calc c., Crot.).

Abdomen. Tearing and cutting pains in right side of abdomen. Abdomen distended and hard; hot sensitive; painful(Aconite,Belladonna) Sensation as if ligaments from stomach were stretched. so that she must wear clothes very loose. Drawing from anus to umbilicus. Felling of emptiness in the abdomen. Ulcerative pain about liver; inflammation and abscess. Swelling in caecal region; must lie on back, with limbs drawn up; typhlitis. Abdomen hot, sensitive; painfully stiff from loins down thighs; peritonitis; pus formed.

Stool. a and Anus. Burning in anus during and after stools (Arsenicum, Cantharis, Mercurius, Natr. mur., Sulphur). Constriction of rectum; of anus. Protrusion after stool. Beating in. the anus,as with little hammers. Stool lies close to anus without passing and without urging. Spasmodic pain in anus before and after stool. Closed feeling in anus. Tormenting, constant urging in the rectum, not for stool Stools watery offensive dark (Ars); water, frequent, sudden,about midnight, offensive, ammoniacal; soft, bright yellow; pasty putrid. Obstinate constipation (alum., Nux v., Opium, Plum.). Haemorrhoidal tumors, protruding (Aloe, Calcarea c., Acid Muriaticum, Puls), with stitches at each cough or sneeze.

Urinary Organs. Urine frequent, foaming, black. Pressure in bladder, with frequent urging. STicking ,m cutting pains, or soreness in fore part of urethra. Inefficient urging to urinate.

Female. Organs. Menses scanty, feeble, but irregular; blood black. Labor-like pain during menses (Caulophyllum,Cimic., Puls). Uterine and ovarian pains; relieved by a flow of blood. Pains, like a knife thrust into abdomen. Uterus will not bear contact even of bed clothes; they cause uneasiness. Hot flashes; metrorrhagia and other troubles during climacteric period (Sanguinaria).

Respiratory Organs. Hoarseness; rawness, scraping and dryness in larynx (Aconite, Causticum, Chamomilla, Phosphorus); sensitive to touch (Aconite, Spongia); necessity to swallow; constant necessity to hawk. Voice will not come because something in larynx prevents, which cannot be hawked loose, though mucus is brought up. Suddenly something runs from neck to larynx, and interrupts breathing;l awakens him at night; spasms of glottis. Larynx and throat painful on bending head backward. Pain in sternum at night, with burning in chest; under left heart. Larynx sensitive; cannot bear anything about the throat (Apis); causes suffocation. Cough worse after sleep;cased by pressure on larynx; dry and hacking caused by touching the throat; from tickling the throat from crawling Ign); in evening on lying down. Constantly obliged to take to deep breath (Ign) worse when sitting. After a long wheezing cough, suddenly spits up profuse, frothy, tenacious mucus. Shortness of breath; attacks of suffocation (Aconite, Arsenicum, Apis.,Ipecac., Phosphorus). Oppression of the chest; in sleep. Spitting large quantities of ropy mucus.

Heart. Construction about he heart (Cact.) Cramp-like pain in. the precordial region, causing palpitation, with anxiety. Feels beating of the heart, with great weakness. Irregularity of bets in the heart (Cact., Laur.). Restless, trembling anxiety about he heat; suffocation on lying down; weight on chest; heart feels constricted; rheumatism down; weight on chest; heart feels constricted; rheumatism of heart. Fainting, with pain in heart; nausea; pale face; vertigo.

Neck and Back. Stiffness of he nape of the neck (Kali carb., Ignatia, Phosphorus, Rhus tox.) Sensitive to external pressure. Pain in small of back, s if lame and weak (Rhus tox.). Drawing pains in small of back; extending into hips and legs.

Limbs. Great weakness in both arms and legs. Aching pains in shin bones. Weakness in knees after eating. Ulcers on lower extremities (Arsenicum, Lycopodium). Perspiration on feet. Red, bluish, painful swellings of legs and feet.

Generalities. Weakness of whole body in morning on rising. emaciation with suffering and weakness. Trembling as from anxiety, without anxiety. Sudden jerking of whole body when sitting. Starting from below. Necessity to do everything rapidly. Great physical and mental exhaustion, in morning. Fainting, with pain in heart; nausea;pale face; vertigo. Pricking, pulsating, tearing pains (Puls). convulsions; epilepsy (bell., calc. c., cupr.) Affected parts look bluish. Restlessness tossing about, with moaning in children with sore throat. Restlessness and longing to get into the open air. Great inclination to lie down. especially after eating. Rheumatic pains, first in the left side, then in the right. Feels bruised in the morning after waking, slight touch intolerable. Complaints mostly on left side of body. Obliged to wear cloths loose; cannot bar the contact.

Skin. Sore , Spots fungoid, dark-red, brownish, with whitish spots, burning on wiping. Superficial ulcers, foul at the bottom (Mercurius, Nitr., ac.); black-bluish appearance. Military eruption;l rash appears slowly,or turns black or bluish. Erysipelatous eruptions. Carbuncles, with purple surroundings . Old scars break open and bleed; the open spots dark-red, looking like a flat sponge. Itching over the whole body.

sleep. Sleepiness without being able to sleep (Belladonna, cham., Op). Tossing and moving during sleep. Lively and wide awake in the evening. Restless sleep, with many dreams and frequent waking. Waking in fright at a trifle. Amorous dreams. Dreams with meditation.

Fever. Chilliness in back (Abies can.); commence in small of back (Caps., Eupat. perf.). Coldness in evening, with chattering of teeth. Shivering during the heat. Chill runs chattering of teeth. Shivering during the heat. Chill runs up the back; on alternate days. Icy coldness of the feet; with oppression of chest. Heat as from orgasm of blood; mostly at night (Calcarea c.). Heat particularly in hands and feet, evenings; burning in palms and soles (Sulphur). Perspiration at night (Calcarea c., Cinchona, Phosphorus, Phosphorus ac., Silicea, sulph.). Intermittents, recurring ever spring, or after suppression in the previous fall, by quinine.

Aggravation. After sleep; in morning in evening; after evening; from acids or alcoholic drinks from sub’s rays; from extremes of temperature.

Amelioration. From loosening the clothes; from eructations.

Conditions. Often useful in women during climacteric period. In persons of a phlegmatic constitution, with disposition to melancholic and indolence. Persons with dark eyes and dark complexions.

Compare. Apis, Ars, Belladonna, Causticum, Cinchona, Hepar s., Lactic ac., Lycopodium, Mercurius, Naja., Nitr. ac., Phosphorus, Pulsatilla, Rhus tox., Sulphur, Tarent.

Antidotes. Arsenicum, Belladonna, merc., Nux v., Phosphorus c., Heat, Alcohol, Salt. Acids disturb the curative action action.


A knowledge of the general clinical range of Lachesis is very readily inferred from the preceding general analysis and pathogenesis. It is especially useful in diseases characterized hand, and the peculiar nervous phenomena upon the other, while the two combined present a perfect picture of the general action of the drug, only applicable, however in he individual case when the symptoms of the latter correspond with those of the drug. It is a valuable remedy in all dynamic and typhoid types of disease, where the symptoms correspond, whether the case be a true typhus or typhoid fever, or the condition accompanying asthenic inflammations, ulcers, suppurating wounds, abscesses, malignant diseases eruptive or otherwise,, gangrene, pyaemia, etc.

The discharges, whether from the bowels or from ulcers, etc., are always offensive, and in case of local inflammations of whatever nature the affected parts present a bluish or dark purplish appearance. Tendency to ecchymosis and bed sores. In typhoid fever haemorrhages of decomposed blood. Purpura haemorrhagica. Indolent ulcers. Varicose ulcers. Carbuncles Erysipelas. Pustular and other eruptions, which turn black or blush. Fungus haematodes. Yellow fever, with characteristic haemorrhages etc. Scarlatina of a malignant type, dark eruptions, or none at all, virulent throat symptoms, advanced stages, signs of blood poisoning, great prostration. Lachesis is valuable in a get variety of nervous troubles. Convulsions epileptic and historical. Chorea. Tetanus,. Paralysis; left- sided; after apoplexia, or cerebral exhaustion. Progressive locomotor ataxia. Neuralgia of he spine. Coccygodynia; myelitis; neuritis; sciatica. Mania. Dementia; Melancholia. Delirium tremens. Mania after over-study. The characteristic delirium is of a low, muttering type. In mania loquacity predominates. Neuralgic headaches. Meningitis. Threatening apoplexia,m especially in drunkards. Retinitis apoplectica, whether idiopathic or secondary; absorbs the haemorrhage. Haemorrhages into optic nerve, also in eye chambers. In these are other similar eye affections dimness of vision is the most prominent symptom. Defective sight after diphtheria, the most prominent symptom. Defective sight after diphtheria, a paralysis of accommodation, requiring far-sighted glasses (Gelsemium). Keratitis. Ulcers on cornea. Orbital cellulitis, especially following operations for strabismus., Amblyopia, with lung or heart affections. Dark epistaxis in typhoid also in amenorrhoea. Coryza. Hay asthma. chronic nasal catarrh. Facial neuralgia, especially left side. Facial erysipelas, dark, bluish hue, infiltration into cellular tissue. Gangrene of the mouth. Haemorrhage from the gums. Syphilitic ulceration of mouth and throat. Lachesis is a very valuable remedy in tonsilitis, pharyngitis and other forms of sore throat. the left side is most often affected, or beginning on right side and going to left. The throat symptoms are well defined and have been fully detailed under their appropriate head, and need to be repeated.

According to Hering, there is no remedy so often effective in breaking up an attack of quinsy at its inception, nor in promoting resolution in the late stages. A most valuable remedy in malignant diphtheria, and malignant ulcerations of he throat, the fauces and pharynx presenting a purplish appearance great prostration and other characteristic symptoms. Gangrenes sore throat. Elongated uvula, constant inclination to hawk, hacking cough. l chronic irritability of fauces. Lachesis us useful in a variety of affections of he lower air passages Aphonia from paralysis or oedema of the vocal chords. Laryngitis, catarrhal, croupous or diphtheritic, with the sensitiveness of throat, suffocation and other symptoms already mentioned. Spasms of the glottis. Whooping cough. Subacute and chronic bronchial catarrh. Asthma, paroxysms awaken from sleep. , intolerance of pressure about neck and chest, relief from expectoration. Hay asthma. Only useful in pneumonia when typhoid symptoms supervene, especially after abscesses have formed. The threatening paralysis of the lungs, greatest difficult in breathing with long lasting attacks of suffocation. Hydrothorax, suffocative fits, waking from sleep, cyanotic symptoms. emphysema. nervous cough of reflex origin, especially from uterine or ovarian disease.

Lachesis is an important remedy in the female sexual sphere. It is especially useful; in ovarian disease, the left ovary being most often affected. Ovarian neuralgia., Ovaritis. Ovarian tumors. Pelvic cellulitis and peritonitis. Acute general peritonitis, pus formed typhoid symptoms. Puerperal metritis, metro-peritonitis, offensive lochial discharge. Endometrots. Dysmenorrhoea. Hot flashes. Metrorrhagia and other troubles during the climaxis. Cancer of the uterus. Displacements of the uterus. In all uterine and ovarian disease the chief symptoms is an intolerance of clothing or bed clothes about the abdomen, which, with other characteristics of the drug, may indicate its useful in any disease of the pelvic viscera. mastitis, bluish appearance. Cancer of the breast. Extreme sensitiveness of the nipples. Phlegmasia alba dolens. Syphilitic ulceration, especially of external genitals. Vaginal fistula becoming gangrenous Subacute or chronic cystitis, especially from uterine disease. Post-scarlatinal nephritis. Sometimes useful in dyspepsia and gastralgia. Gastritis in drunkards or after Mercury. Hepatitis, liver swollen, painful and sensitive, throbbing, intolerance of clothing, abscess forming, typhoid symptoms supervening. Gall-stones. Jaundice. A valuable remedy in typhlitis. Fistula in ano. Haemorrhoids, with stitches in tumors from every cough or sneeze; strangulated from constriction of sphincter. Chronic diarrhoea, watery offensive stools; in drunkards; during hot or relaxing spring weather; reflex from uterine irritation; in the course of dynamic diseases. Often useful in cardiac troubles. Pericarditis. Rheumatism of the heart. Hypertrophy. angina pectoris. Reflex functional disturbances, especially from ovarian or uterine disease. Atheromatous arteries, chronic aortitis. Threatened heart failure after exhausting diseases. Cyanosis neonatorum. In all cardiac troubles the terrible dyspnoea is a prominent indication. Intermittent fever recurring every spring, or after suppression in the previous fall by quinine.

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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