Common Names: Spanish fly.
Cantharis Vesicatoria (Canth.) is prepared from an iridescent green beetle which contains cantharidin, a toxic blistering agent which, in small amounts, has also been used as an aphrodisiac. Be warned though, deaths have occurred from its use. In safe homeopathic potencies, however, it is a remedy for inflammation of the mucous or serous membrane, mainly those of the urinary tract, but the respiratory or gastrointestinal membranes may also be affected. Symptoms emerge rapidly. Inflammations produce intense cutting or burning pains and membranes blister or ulcerate. Bright lights or reflective surfaces such as mirrors irritate, and coffee worsens the symptoms. Cantharis vesicatoria (Canth.) has also been used for types of mania.
- intense bladder or urethral inflammation (cystitis or urethritis).
- Violent burning pain in the bladder with constant and intense urging.
- Urine passes in drops and feels like scalding water.
- Cystitis with free blood or large clots in the urine.
- Increased sexual desire during inflammation of the bladder or urethra
- Excessive sexual desire that can’t be satisfied.
Gastrointestinal (Digestive) Symptoms
- Burning thirst with an aversion to drinking.
- Burning and bloodstained diarrhoea, especially if accompanied by bladder inflammation.
- Burning gastritis or peritonitis.
- Skin burns with intense pain.
- Burning and itching blisters.
- Anger and irritability from intense burning or cutting pains.
- Violent behaviour from burning and cutting pains.
- Historically, Cantharis has been used to treat intense states of violent mania.
- Bladder inflammation combined with meningitis / encephalitis which results in mania.
- Cystitis with pain and urging.
- Burns and scalds.
Where do I find it?
While above self-limiting or acute complaints are suitable for home treatment, also contact your healthcare provider during emergency situations or if symptoms worsen or fail to improve. Chronic or persistent complaints, which may or may not be mentioned above, require a different treatment and dosage protocol so are best managed by a qualified homeopath for good results.
Dosage Instructions (suitable for babies to adults)
For acute and self-limiting complaints, take one pill or five drops of the remedy every 15 minutes to 4 hours (15 minutes for intense symptoms, 4 hours for milder ones). Once an improvement is noticed, stop dosing and repeat the remedy only if symptoms return. If there is no improvement at all by three doses, choose a different remedy or seek professional guidance. Chronic symptoms or complaints require a course of professional treatment to manage the changes in potencies and remedies that will be required.
From Past Masters
Homeopathy is a 200-year system of medicine. Early medical homeopaths recorded initial provings, remedy relationships, and their early experiences with each remedy in great detail.
These writings were then shared with others to advance homeopathic knowledge and practice.
Today, these same writings give a fascinating insight into the symptoms and clinical conditions for which each remedy was used.
The following extract, with minor editing, is one example.
Leaders In Homoeopathic Therapeutics by E. B. NASH M.D.
Frequent urging to urinate, with straining and cutting, burning pains.
Small unsatisfactory quantity passed at a time, or bloody urine.
Excessive burning pains (eyes, mouth, throat, stomach, intestinal tract; all the mucous surfaces and skin).
Stringy and tenacious discharges from the mucous membranes.
Nearly all complaints accompanied with the characteristic urinary symptoms.
Erysipelas, with blebs or large blisters filled with water and burning pain; useful for surface burns (locally).
Uncontrollable anguish, furious rage, frenzied delirium; strong sexual desire, both sexes.
Disgust for everything; drink, food, tobacco.
Dysenteric stools, bloody and shreddy, like scrapings from intestines, with tenesmus in rectum and bladder.
* * * * *
If I were to select the one remedy with which to prove the truth of the formula similia, etc., I think this would be the one. There is no remedy that so surely, and so violently, irritates and inflames the urinary organs, and no remedy so promptly cures such irritation when it puts on, the Cantharis type or form, which it often does.
H N. Guernsey wrote: “It is a singular fact, though known to most practitioners, that there be frequent micturition attended with burning, cutting pain, or if not so frequent and the cutting, burning pain attends the flow, Cantharis is almost always the remedy for whatever other suffering where may be, even in inflammation of the brain or lungs.” He might have added in the throat, and mucous membranes all through the intestinal tract, even to the rectum and anus, and in the pleura or on the skin.
He also wrote: “Cantharis should always be remembered and studied in treating affections of the air passages when the mucus is tenacious.” (Hydrastis, Kali bichrom. Coccus cacti, etc.) I had the pleasure of verifying the truth of this in the case of a lady who had suffered a long time with bronchitis.
The mucus was so profuse, and tenacious, and ropy, that I thought of Kali bichromicum, and thought it must be the remedy; but it did not even ameliorate, and she got worse all the time, until one day she mentioned that she had great cutting and burning on urinating, which she must do very frequently.
On the strength of the urinary symptom, for I knew nothing of its curative powers on the respiratory organs at that time, I gave her Cantharis. The effect was magical.
It is needless to describe the mutual delight of both physician and patient in such a case, for it was astonishing the rapidity with which the perfect and permanent cure of the case was accomplished.
Let us notice still further the effects of this remedy upon the urinary organs by calling attention to a few symptoms that have been both produced in proving and cured ab usu in morbis.
I have learned to place the highest estimate upon such symptoms. To be sure there are many symptoms in our great Materia Medica that have come to us through clinical sources only, and very valuable ones, too. But they cannot be received with such implicit confidence on short acquaintance as those that are both pathogenetic and clinical. They should always be separated when possible, as they were in “Hull’s Jahr” of old. Here are a few of them. “Violent pains in bladder, with frequent urging to urinates with intolerable tenesmus.” “Violent burning cutting pains in the neck of the bladder.” “Before, during and after urinating fearful cutting pains in the urethra” “Constant urging to urinate; urine passed drop by drop with extreme pain.” “Urine scalds him; it is passed drop by drop.”
No homśopathist meeting these symptoms in a case would fail to think of Cantharis at once, no matter what else ailed the patient, as it has cured the most diverse and varied diseases when occurring in conjunction with these urinary symptoms. How any physician of any school can deny the truth of similia similibus curantur in the light of such testimony of proof can only be accounted for on the principle of “none so blind as those who will not see.”
Cantharis has also very decided action upon the skin. In erysipelas it is sometimes the best remedy, and choice has to be made between it and Apis, which also sometimes has great urinary irritation in such cases. In the Apis cases there is apt to be more śdema; in Cantharis more blistering. In Cantharis the burning is more intense than under the Apis, while in the latter there is more stinging. The urinary symptoms, if present, are very much more intense under Cantharis.- Again, the mind symptoms of the two remedies are quite different. In the Apis cases, aside from the stinging pains which make the patient cry out sharply at times, especially if the eruption inclines to “go in” and attack the membranes of the brain, the patient may not be so very restless and complaining; but in the Cantharis case the patient is uneasy, restless, dissatisfied, distressed, sometimes moaning or violently crying; wants to be moved about constantly. The mind symptoms actually make one think of Arsenicum album, and when we take into account the intense burning it is doubly so. So that it would be very easy to get confused between these two remedies, as well as Cantharis and Apis. If great thirst is also present it would make us think of Arsenic, And now we are upon the skin, Cantharis is a great remedy for burns, both locally as an application and internally for the more chronic conditions and sequelć. In all skin troubles where blebs or watery vesicles form, which burn and itch, or when touched burn and smart, we do well to remember Cantharis, and look further to find more symptoms, if present, to corroborate it. Hering used to challenge skeptics to burn their fingers, and then cure them by dipping the fingers into water medicated with Cantharis. So great was his faith in it.
I will call attention to a sensational symptom of Cantharis which I believe is underestimated in practice. It is the sensation of Burning. If any remedy deserves to be placed alongside Arsenicum for burning it is this one. I will quote so as to bring all together, in a way to impress upon our memory the burnings of Cantharis. “Inflammation of the eyes particularly when caused by a burn.” “Burning in mouth, throat, and stomach.” Great thirst, with burning pain in throat and stomach. “Violent burning pain in stomach in region of pylorus.” “Violent burning pain and heat through whole intestinal tract.” “Passage of white or pale-red tough mucus with the stool like scrapings from intestines, with streaks of blood; after stool colic relieved, burning, biting, and stinging in the anus.” “Great burning pain in the ovarian regions.” “Peritonitis with burning pain, abdomen sensitive and tenesmus of the bladder.” “Burning and stinging of the larynx, especially when attempting to hawk up tough mucus.” “Burning in the chest.”
We have already spoken of the burnings connected with affections of the urinary organs, and also of the burnings of the skin in erysipelas and other eruptions upon the surface.
This seems to me to be sufficient to impress upon the reader the value of this symptom belonging to this remedy. I will close by calling attention to its effect upon the membranes to increase their secretion. This action is positive and is a valuable indication for its use.
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