The want of a certain diuretic, has long been one of the desiderata of medicine. The Digitalis is undoubtedly at the head of that class, and will seldom, if properly administered, disappoint the expectation. I can speak with the more confidence, having, in an extensive practice, been a happy witness to its good qualities.
For several years, I have given the infusion in a variety of cases, where there was a deficiency in the secretion of the urine, with the greatest success. In recent obstructions, I do not recollect many failures. In anasarcous diseases, and in the anasarca, when combined with the ascites; in swellings of the limbs, and in diseases of the chest, when there was the greatest reason to believe an accumulation of serum, the most beneficial consequences have followed from its use.
Had I been earlier acquainted with your intention to publish an account of the Digitalis, I could have transmitted some cases, which might have served to corroborate these assertions: but I am convinced the Digitalis needs not my assistance to procure a favorable reception. Its own merit will ensure success, more than a hundred recited cases.
I could wish those gentlemen who intend to make use of this plant, to collect it in a hot dry day, when the petals fall, and the seed-vessels begin to swell.
The leaves kept to the second year are weaker, and their diuretic qualities much diminished. It will therefore be necessary to gather the plant fresh every season.
These cautions are unnecessary to the accurate botanist, who well knows, that a plant in the spring, though more succulent and full of juices, is destitute of those qualities which may be expected when that plant has attained its full vigour, and the seed-vessels begin to be manifest. But for want of attention to these particulars, its virtues may be thought exaggerated, or doubtful, if beneficial consequences do not always flow from its use. There are diseases it cannot cure; and in several of those patients in this town, who first took the Digitalis by your orders, there was the most positive proof of the viscera being unsound. In these desperate cases it often procured a plentiful flow of urine, and palliated a disease which medicine could not remove.
At a remote distance, physicians are seldom applied to for advice in trifling disorders. Many remedies have been tried without relief, and the disease is generally obstinate or confirmed.—It would not be fair to try the merits of the Digitalis in this scale. It might often fail of promoting the end desired. I flatter myself the reputation of this plant will be equal to its merit, and that it will meet with a candid reception.
As there is no pleasure equal to relieving the miseries and distresses of our fellow-creatures, I hope you will long enjoy that peculiar felicity.
Permit me to return my thankful acknowledgments, for your free communication of a medicine, by which means, through the blessing of providence, I have been enabled to restore health and happiness to many miserable objects.
I am, &c.
Yours,
J. WAINWRIGHT.