Buchu, or Bookoo. The native African name of the leaves of Barosma (Diosma) betulina, Barosma crenulata, and Barosma serratifolia. Nat. Ord. Rutaceae. Linn.

Syst. Pentandria Monogynia. Hab. The Cape of Good Hope and Southern Africa.

Med. Prop. and Action. Tonic, diaphoretic, and diuretic. It exercises a peculiarly soothing effect on the genito-urinary organs. whilst its tonic operation is manifested by the returning strength and increased appetite of the patient. To obtain its beneficial effects, the medicine requires to be persevered in Active principle*, a volatile oil and a bitter extractive, Diosmin.

*Essentials of Mat. Med. and Therap., p. 249. Med. Times, Aug. 9, 1851.

On Diseases of the Eye.

§ Journ. de Med., t lxxvi p. 257.

Offic. Prep. 1. Infusum Bucco(Unchu leaves, oz. ss.; Boiling Distilled Water fl. oz. x.; infuse for an hour and strain). Dose, fl. oz. j. - fl. oz. ij.

2. Tinctura Bucco (Buchu Bruised, Oz

iiss.; Proof Spirit Oj. Prepared by maceration and percolation). Dose, fl. drm. j - fl. drs. ij.

Dose of Bucco leaves, dried and powdered, gr. xx. - gr. xl.

•568. Therapeutic Uses. In Affections of the Bladder depending upon disease of the Kidneys, Sir B. Brodie* states that he has seen it productive of the most beneficial effects. From fl oz. iss. to fl. oz. ij. of the infusion (ante) should be given twice or thrice daily. It requires to be persevered in, and should be combined with Alkalies or Acids, as may be indicated by the state of the urine.

569. Renal Affections are often remarkably benefited by a persevering use of this remedy. Dr. Carter regards it as one of the most valuable remedies we possess in these affections, often affording decided relief when other remedies fail.

570. In Rheumatism, particularly when it assumes an intermittent character, the infusion of Buchu proves serviceable. It is a popular remedy amongst the natives of Southern Africa.

571. In Dropsy, Its Use Is Suggested By Dr