Cannabin tannate
More actions
| Kind | Pharmacy preparation |
|---|---|
| Part of the plant | Flower |
| Also called | Cannabinum Tannas Cannabine tannate tannate of cannabine |
| Language | English |
| Country | United Kingdom United States |
|---|---|
| Recorded in | British Pharmaceutical Codex (1907) |
| First recorded | 1898[1] |
| Still made | Not known |
Cannabin tannate (Cannabinum Tannas) is a powder prepared from Indian hemp and tannic acid, given as a hypnotic in the late 19th and early 20th centuries. The British Pharmaceutical Codex of 1907 describes it as "commercially prepared": the hemp is distilled with steam to remove its volatile oil and extracted with water, and the "cannabine" of the watery extract is combined with tannic acid, either directly or after precipitation with lead acetate. It is a yellowish-grey or brownish powder, bitter and strongly astringent.[2]: 201
The Codex gives it as a hypnotic in nervous insomnia and in dysmenorrhoea and menorrhagia, "said to be free from the intoxicating properties of Cannabis Indica", in pills or cachets at 4 to 8 grains, but warns that "Its activity varies very greatly, but it is generally of little value".[2]: 201 King's American Dispensatory (1898) wrote that "The tannate of cannabine, in doses of 5 to 15 grains, is said to be an efficient hypnotic, though many declare it inefficient for this purpose", and, citing the Pharmaceutical Journal of 1895, that Merck's cannabin tannate was not thought to be "the active principle proper".[1]
See also
References
- ↑ 1.0 1.1 Felter, Harvey Wickes; Lloyd, John Uri (1898). "Cannabis Indica (U. S. P.)—Indian Cannabis". King's American Dispensatory – via Henriette's Herbal Homepage.
- ↑ 2.0 2.1 Pharmaceutical Society of Great Britain (1907). The British Pharmaceutical Codex: an imperial dispensatory for the use of medical practitioners and pharmacists. London: Pharmaceutical Society of Great Britain – via Wellcome Collection.