DIGITALIS
Digitalis purpurea. The foxglove. N.O. Scrophulariaceae.
Tincture of the second year leaves.
THE ESSENTIAL FEATURES
Digitalis is primarily a heart remedy. It should be considered when the pulse is abnormally slow and later in the pathology, fast or irregular, intermittent; where there is heart disease, with great weakness, and the patient can hardly talk, and is losing strength to the point that he feels faint. Cold skin and irregular respiration will often point to such cardiac pathology. All this can be accompanied by deathly nausea and emptiness in the stomach; weakness and dilation of the myocardium; and prostration from the slightest exertion.
Digitalis will be indicated if you have been told by the patient that when the problem started (whether acute or chronic), the pulse was very slow, even down to 40 beats per minute. Hahnemann says that Digitalis ‘greatly slows down the pulse in its primary action’, and this initial slowing down of the pulse rate is a guiding symptom of Digitalis in almost all cases, no matter what the pathology.
It must be understood that here the heart is in a precarious state, is really very weak, and therefore it can be expected that later in the evolution of the case (under stress or exertion) the heart rate will suddenly increase, to the extent of extreme tachycardia, arrhythmia and auricular fibrillation. For example, the pulse may be very slow when lying down, but on sudden motion, even the slightest, it can become quick, dicrotic and irregular. If the patient sits up, raises his hand or turns his head, the pulse races.