Digitalis Purpurea therapeutic range of actions as per Boericke Materia Medica
Comes into play in all diseases where the heart is primarily involved, where the pulse is weak, irregular, intermittent, abnormally slow, and dropsy of external and internal parts. Weakness and dilatation of the myocardium. Its greatest indication is in failure of compensation and especially when auricular fibrillation has set in. Slow pulse in recumbent posture, but irregular and dicrotic on sitting up. Auricular flutter and fibrillation especially when subsequent to rheumatic fever. Heart block, very slow pulse. Other symptoms of organic heart disease, such as great weakness and sinking of strength, faintness, coldness of skin, and irregular respiration; cardiac irritability and ocular troubles after tobacco; jaundice from induration and hypertrophy of the liver, frequently call for Digitalis. Jaundice with heart disease. Faint, as if dying. Bluish appearance of face. Cardiac muscular failure when asystole is present. Stimulates the heart's muscles, increases force of systole, increases length. Prostration from slight exertion. Collapse.
Dose-The third to thirtieth attenuation will bring about reaction when the drug is homeopathically indicated; but for palliative purposes the physiological dosage is required. For this purpose, the tincture made from the fresh plant, in doses of five to twenty drops, when the cardiac stimulation is desired, or the infusion of 1 1/2 per cent. Dose, one-half to one ounce if the diuretic action is wanted. The tincture may be given on sugar or bread, and nothing liquid be taken for twenty minutes before or after its administration. Of the powdered leaves, 1/2 to 2 grains in capsules. Digitoxin 1-250 grain. No matter what form of digitalis is given the dose should be reduced as soon as the pulse rate has been lowered to 80 beats a minute and the normal rhythm has been partially or completely restored. Under such conditions a good rule is to cut the dose in half and still more if there be a sudden falling off of the urinary output.
Please note that the dosage of single homeopathic medicines varies from drug to drug depending upon the condition, age, sensitivity and other things. In some cases they are given as regular doses as 3-5 drops 2-3 times a day whereas in other cases they are given only once in a week, month or even in a longer period.