§ 118

Every medicine exhibits peculiar actions on the human frame, which are not produced in exactly the same manner by any other medicinal substance of a different kind.1

1 This fact was also perceived by the estimable A. v. Haller, who says (Preface to his Hist. stirp. helv.): "Latet immensa virium diversitas in iis ipsis plantis, quarum facies externas dudum novimus, animas quasi et quodcunque caelestius habent, nondum perspeximus."

§ 119

As certainly as every species of plant differs in its external form, mode of life and growth, in its taste and smell from every other species and genus of plant, as certainly as every mineral and salt differs from all others, in its external as well as its internal physical and chemical properties (which alone should have sufficed to prevent any confounding of one with another), so certainly do they all differ and diverge among themselves in their pathogenetic - consequently also in their therapeutic - effects.1 Each of these substances produces alterations in the health of human beings in a peculiar, different, yet determinate manner, so as to preclude the possibility of confounding one with another.2

1 Anyone who has a thorough knowledge of, and can appreciate the remarkable difference of, effects on the health of man of every single substance from those of every other, will readily perceive that among them there can be, in a medical point of view, no equivalent remedies whatever, no surrogates. Only those who do not know the pure, positive effects of the different medicines can be so foolish as to try to persuade us that one can serve in the stead of the other, and can in the same disease prove just as serviceable as the other. Thus do ignorant children confound the most essential different things, because they scarcely know their external appearances, far less their real value, their true importance and their very dissimilar inherent properties.

2 If this be pure truth, as it undoubtedly is, then no physician who would not be regarded as devoid of reason, and who would not act contrary to the dictates of his conscience, the sole arbiter of real worth, can employ in the treatment of diseases any medicinal substance but one with whose real significance he is thoroughly and perfectly conversant, i.e., whose positive action on the health of healthy individuals he has so accurately tested that he knows for certain that it is capable of producing a very similar morbid state, more similar than any other medicine with which he is perfectly acquainted, to that presented by the case of disease he intends to cure by means of it; for, as has been shown above, neither man, nor mighty Nature herself, can effect a perfect, rapid and permanent cure otherwise than with a homœopathic remedy. Henceforth no true physician can abstain from making such experiment, in order to obtain this most necessary and only knowledge of the medicines that are essential to cure, this knowledge which has hitherto been neglected by the physicians in all ages. In all former ages - posterity will scarcely believe it - physicians have hitherto contented themselves with blindly prescribing for diseases medicines whose value was unknown, and which had never been tested relative to their highly important, very various, pure dynamic action on the health of man; and, moreover, they mingled several of these unknown medicines that differed so vastly among each other in one formula, and left it to chance to determine what effects should thereby be produced on the patient. This is just as if a madman should force his way into the workshop of an artisan, seize upon handfuls of very different tools, with the uses of all of which he is quite unacquainted, in order, as he imagines, to work at the objects of art he sees around him. I need hardly remark that these would be destroyed, I may say utterly ruined, by his senseless operations.

§ 120

Therefore medicines, on which depend man’s life and death, disease and health, must be thoroughly and most carefully distinguished from one another, and for this purpose tested by careful, pure experiments on the healthy body for the purpose of ascertaining their powers and real effects, in order to obtain an accurate knowledge of them, and to enable us to avoid any mistake in their employment in diseases, for it is only by correct selection of them that the greatest of all earthly blessings, the health of the body and of the mind, can be rapidly and permanently restored.

§ 121

In proving medicines to ascertain their effects on the healthy body, it must be borne in mind that the strong, heroic substances, as they are termed, are liable even in small doses to produce changes in the health even of robust persons. Those of milder power must be given for these experiments in more considerable quantities; in order to observe the action of the very weakest, however, the subjects of experiment should be persons free from disease, and who are delicate, irritable and sensitive.

§ 122

In these experiments - on which depends the exactitude of the whole medical art, and the weal of all future generations of mankind - no other medicines should be employed except such as are perfectly well known, and of whose purity, genuineness and energy we are thoroughly assured.

§ 123

Each of these medicines must be taken in a perfectly simple, unadulterated form; the indigenous plants in the form of freshly expressed juice, mixed with a little alcohol to prevent it spoiling; exotic vegetable substances, however, in the form of powder, or tincture prepared with alcohol when they were in the fresh state and afterwards mingled with a certain proportion of water; salts and gums, however, should be dissolved in water just before being taken. If the plant can only be procured in its dry state, and if its powers are naturally weak, in that case there may be used for the experiment an infusion of it, made by cutting the herb into small pieces and pouring boiling water on it, so as to extract its medicinal parts; immediately after its preparation it must be swallowed while still warm, as all expressed vegetable juices and all aqueous infusions of herbs, without the addition of spirit, pass rapidly into fermentation and decomposition, whereby all their medicinal properties are lost.

§ 124

For these experiments every medicinal substance must be employed quite alone and perfectly pure, without the admixture of any foreign substance, and without taking anything else of a medicinal nature the same day, nor yet on the subsequent days, nor during all the time we wish to observe the effects of the medicine.

§ 125

During all the time the experiment lasts the diet must be strictly regulated; it should be as much as possible destitute of spices, of a purely nutritious and simple character, green vegetables,1 roots and all salads and herb soups (which, even when most carefully prepared, possess some disturbing medicinal qualities) should be avoided. The drinks are to be those usually partaken of, as little stimulating as possible.2

1 Young green peas, green French beans (+ ‘boiled potatoes’ in the Sixth Edition) and in all cases carrots are allowable, as the least medicinal vegetables.

2 The subject of experiment must either be not in the habit of taking pure wine, brandy, coffee or tea, or he must have totally abstained for a considerable time previously from the use of these injurious beverages, some of which are stimulating, others medicinal.