But these differences in action are probably rather differences in degree than in kind. Peeters says: “Ethyl alcohol is less dangerous than the more complex members of the series. It is less irritating, less charged with carbon, its specific gravity is less, its fumes are less dense and escape more readily from the economy; its action ought to be less profound, less prolonged, than that of butyl, propyl, and amyl alcohol, but it is of the same nature. It is not qualitatively but quantitatively different. I suspect that the effects of liquors containing ethyl alcohol are, as a rule, less decidedly injurious, by reason of the more favorable surroundings of those who can afford to use them.”
The three principal groups of the alcoholic drinks of commerce produce, independently of the properties of the different kinds of alcohol which they contain, forms of acute alcoholism which differ in important respects.
The intoxication induced by the exclusive use of malt liquors is dull and heavy, slow in coming on, and of long duration. The stage of excitement is relatively brief, not often characterized by gayety, often brutal; drowsiness soon supervenes and deepens slowly into unconsciousness. The after-effects are disagreeable and prolonged. The enormous quantity of fluid and the large amount of malt extractives cause gastro-hepatic derangements of a more or less distressing kind. To the hops must be ascribed the prolonged dulness which is so characteristic of the after-effects of beers and ales. The influence of the various substances used in the adulteration of beers without doubt modifies the symptoms of the alcoholism which these beverages cause when impure. These substances consist of glucose, various vegetable bitters, and salt—articles not necessarily hurtful in small amounts, but capable of exerting deleterious action when taken in excess and in connection with the normal ingredients of beer.
The intoxication produced by pure wines is, as a rule, characterized by a bodily and mental activity strongly in contrast with the drunkenness produced by malt liquors. The drunkard is usually gay and vivacious—at all events, lightly merry or not hopelessly despondent. His mood is variable, changing from grave to gay. The first stage is prolonged, and the manifestations of the later stages less grave, nor are the sequels apt to be so severe. The action is that of ethyl alcohol and certain ethereal substances, the latter being present, however, only in minute amounts. The rapidity of the effects depends upon the proportion of alcohol which the wine contains, which varies from about 7 per cent. in the clarets to 15, to 18, or even to 20 per cent. in port and madeira. The sparkling wines, moselle and champagne, produce more transient effects than the still wines—a fact probably to be explained by their greater and more prompt diuretic action.
The foregoing remarks apply only to pure wines. The intoxication which follows the use of artificial compounds sold in all parts of the world as wines betrays in its course and symptoms the high percentage and toxic characters of the mixed alcohols which form their essential ingredients.
The intoxication which follows excesses in the various spirits of commerce presents no special characters. Its symptoms are determined to a considerable extent by the relative purity—that is, freedom from admixture with the various complex alcohols—of the liquor by which it has been produced. Potato spirit causes drunkenness which is profound, overwhelming, and preceded by a brief period only of excitement.
Even more important than the kind of liquor is its quantity. Here, however, it is impossible to formulate precise statements. A few glasses of wine will produce effects in some persons more decided than much strong spirits in others. Those conditions which favor the absorption of alcohol hasten the production and augment the intensity of alcoholism; and the contrary is true. Thus, alcohol taken while fasting does much more harm than the same amount taken with a meal. Intense excitement, anger, mortification, or other violent emotion is said by Lentz to increase the effects of alcohol. Sudden transition from a warm to a cold atmosphere intensifies the action. That this effect of cold is due to suppression of perspiration, and the consequent interference with one of the elements of elimination, is much less likely than that it is due to the further depressing influence of cold upon the nervous system, already depressed by the alcohol imbibed. Occupation has in an indirect way much to do with the facility with which alcohol is borne. Hard work, requiring great and continuous muscular effort, especially in the open air, diminishes the liability to acute alcoholism, while sedentary occupations and confinement strongly predispose to it. These well-recognized facts are to be accounted for by the influence of different occupations and modes of life upon the elimination of the poison. Persons who are debilitated by chronic disease or are convalescent from acute maladies, and the otherwise feeble and anæmic, are peculiarly obnoxious to the action of alcohol. Previous custom and hereditary peculiarities of organization exert an influence upon the liability of individuals to acute alcoholism, and upon its nature when induced.
Persons of an impressible nervous organization are peculiarly prone to the evil effects of drink. With such persons slight excess is often followed by serious consequences; the intellectual disturbance is early developed and out of proportion to the derangements of motility and sensation. The effects of alcohol are manifested more promptly and more intensely in children and women than in men or in the aged. Drunkenness is induced more rapidly and with smaller quantities of alcohol in summer than in winter, in warm than in cold countries.
B. IRREGULAR FORMS OF ACUTE ALCOHOLISM.20—1. The Maniacal Form.—The outbreak is usually sudden, sometimes occurring after the ingestion of comparatively small quantities of alcohol; at others after excesses which in a certain proportion of the cases have already ceased. The transition from a condition apparently normal, or marked at most by mental concentration, restlessness, and some degree of irritability, to furious mania is sometimes almost instantaneous, and the subsidence of the latter no less swift. More commonly there are prodromic symptoms, among which are general malaise, præcordial distress, palpitations, flushing of the face, vertigo, tinnitus aurium, phosphenes, and dull, throbbing headache. The attack is characterized by maniacal excitement, usually of a furious kind. The restlessness is, however, far from being aimless and purposeless. On the contrary, impelled by the wildest passions, transported with rage, the patient seeks the destruction of life and property, and wreaks his fury alike upon animate and inanimate objects. So great is his strength for the time being that several strong men may be scarcely able to restrain him. He pours forth a torrent of commingled threats and curses, in which may be heard unintelligible, and often inarticulate, sounds. He is beside himself, yet, so far as can be learned, there are neither hallucinations nor delusions by which his fury can be explained. In this respect the condition is wholly unlike that form of alcoholic mania in which the actions are explained by the imaginary surroundings and circumstances of the patient. In the maniacal form of acute alcoholism the most trifling incident, a word, a look, are sufficient to produce a tempest of rage that may end in scenes of violence. Nevertheless, the patient yet retains for a time some notion of his surroundings. At length, however, he falls into a state of complete unconsciousness, and the delirium is like that of fever, of the delusions of which no recollection afterward remains. This form of acute alcoholism is almost invariably associated with the symptoms of a high degree of cerebral hyperæmia. The hands are hot, the eyes injected, the pupils dilated or contracted, the expression eager. There are abundant secretion of saliva, frequent and irregular respiration, a rapid pulse—often exceeding 100—throbbing arteries, distended veins, and a hot skin, often bathed with sweat. The urine is scanty and constipation usual. There is, as a rule, increased sensibility to light and sound. The attack is liable to come to a tragic close in murder or suicide.
20 Ivresses anormales ou pathologiques of the French writers.