The leaves of Arctostaphylos (Arbutus) Uva Ursi. Bearberry. Trailing Arbutus. Nat. Ord. Ericaceae. Linn. Syst. Decandria Monogynia. Hab. Mountains of Europe, Asia, and North America.

Med. Prop. and Action. Astringent and diuretic. Their astringency is due to the presence of Tannic and Gallic Acids; of the former they contain about 36 per cent. As a diuretic they are highly spoken of by Sir B. Brodie in irritative states of the genito-unnary organs. When taken internally, they are absorbed into the system, and have been detected in the urine forty-five minutes after they have been swallowed. The decoction (Ph. Lond.) (Uva Ursi j., Water Oiss. boiled to Oj.) is a good form for internal use.

Offic. Prep. Infusum Uvaj Ursi (Bearberry Leaves oz. ss.; Boiling Distilled Water fl. oz. x. Infuse for two hours and strain). Dose, fl. oz. j. - fl. oz. ij.

Dose of powdered leaves, gr. x. - gr. xx.

Incompatibleg with the Decoction. The Salts of Iron and Lead; the Nitrate of Silver; Tartar Emetic; and Infusion of Yellow Cinchona.

2796. Therapeutic Uses

In Leucorrha, it occasionally proves useful. Dr. D. Davis states that he has had several opportunities of observing that the powdered leaves, in doses of 3ss. - 3j., twice or thrice daily, had the effect of greatly reducing the quantity of the discharge. In Chronic Gonorrhoea and Gleet, it may be given with advantage.

2797. In irritable states of the Bladder, particularly when these are the consequence of Disease of the Kidneys, Sir B. Brodie § employed the Uva Ursi with much advantage. He considers that its influence is confined to these cases, and recommends it in larger doses than are generally given. Thus, from 3j. to 3ij. of the extract may be given daily; or from fviij. to fxvj. of the following infusion: -2796 Therapeutic Uses 241 Fol. Uvse Ursi j., Aq. Ferv. fxviij.; macerate for two hours, boil down to fxvj., and strain. It requires to be persevered in for a considerable period before its good effects appear. If Lithic Acid be present in the urine, small doses of Potash or Liq. PotassAe may be added; and if the urine be highly alkaline, the mineral acids may be substituted. Dr. Prout || considers it more particularly useful when the affection of the bladder partakes more of an irritative than an inflammatory character.

2798. In Cystirrha, when the discharge from the bladder is copious, the decoction (ante) often proves highly beneficial.

* On Cutaneous Diseases, vol. i p. 139.

Edin. Med. Comment., vol. xvi p. 58.

Obstetric Medicine, 2nd Edit., p. 280.

§ On Diseases of the Urinary Organs, p. 140.

|| On Stomach and Renal Diseases.