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Updated: May 24, 2025
Yet the first step must in this case be the study of the effects of the isolated caffein, before the total influences of the familiar beverages can be followed up. An excellent investigation of this caffein effect on various psychological and psychomotor functions has recently been completed.
In fact, it may be stated that any disease or condition which increases the blood pressure generally slows the pulse, unless the heart itself is affected. This is true of hypertension, of arteriosclerosis, of nicotin unless the heart has become injured, and often of caffein, unless it acts in the individual as a nervous stimulant.
Caffein is another valuable stimulant, perhaps best administered as a cup of coffee. Digitalis is not indicated: neither is nitroglycerin, unless the slow heart is due to cardiac pain or to angina. Some patients have syncopal attacks with the least injury or with any mental shock. Such patients as soon as restored are as well as ever.
Yet she was alive existing without oxygen an impossibility as we had always supposed. Seeing no actual evidence of death, the physicians injected camphor and caffein and took other restorative steps, with the result that in an hour the woman breathed again! Twenty-four hours later she was conscious and able to speak.
In such a condition calcium, iron and strychnin, not too frequently or in too large doses, and perhaps caffein, are indicated. Camphor is always a valuable stimulant, more or less frequently administered, during such a period of slow heart. This slow heart sometimes occurs after rheumatic fever; it is quite frequent after diphtheria, and may show a disturbance of the vagi.
A few much larger doses may be given if desired. A cup of coffee may be given the patient medicinally: as a substitute for the drug, an ordinary cup of strong coffee containing between 2 and 3 grains. Other preparations of caffein may be selected if desired, or a soluble preparation may be given hypodermically.
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