This section is from the "A Practical Treatise On Materia Medica And Therapeutics" book, by Roberts Bartholow. Also available from Amazon: A Practical Treatise On Materia Medica And Therapeutics
Buchu. The leaves of Barosma betulina and of other species of Barosma (Nat. Ord. Rutaceae). (U. S. P.) Feuilles de bucco, Fr.; Bukublatter, Ger.
Infusion of buchu (oz j—Oj). Dose, oz ss— oz ij. (Not official.)
Fluid extract of buchu. Dose, τη x
Buchu contains a volatile oil in the proportion of about 15 per cent. This volatile oil consists of a crude oil and a camphor—barosma camphor. The latter has a nearly pure peppermint odor. The existence of barosmin, so called, is doubtful.
 
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