Extractum Viburni Prunifolii. U. S.
Extractum Viburni Prunifolii. U. S.
Extract of Viburnum Prunifolium. Ext. Viburn. Prun. [Powdered Extract of Viburnum Prunifolium]
Related entries: Viburnum Prunifolium
"One gramme of the Extract represents five grammes of viburnum prunifolium." U. S.
"Viburnum Prunifolium, in No. 30 powder, one thousand grammes [or 35 ounces av., 120 grains]; Magnesium Oxide, five grammes [or 77 grains]; Starch, dried at 100° C. (212° F.), Diluted Alcohol, each, a sufficient quantity, to make two hundred grammes [or 7 ounces av., 24 grains]. Moisten the powder with sufficient diluted alcohol and pack it in a cylindrical percolator; then add enough diluted alcohol to saturate the powder and leave a stratum above it. When the liquid begins to drop from the percolator, close the lower orifice, and, having closely covered the percolator, macerate for forty-eight hours. Then allow the percolation to proceed slowly, adding diluted alcohol as required until the viburnum prunifolium is exhausted. Recover the alcohol from the percolate by distillation at as low a temperature as practicable and evaporate the residue to a soft extract in a shallow dish on a water bath, at a temperature not exceeding 70° C. (158° F.). Add the magnesium oxide, incorporate it thoroughly, spread the extract on glass plates and dry it by exposure to currents of warm air. Reduce the extract to a fine powder, weigh it, and add sufficient of the dried starch to make the finished product weigh two hundred grammes [or 7 ounces av., 24 grains]. Mix the powder thoroughly, pass the Extract through a fine sieve, transfer it to small, wide-mouthed bottles and stopper them tightly." U. S.
Dose, five to ten grains (0.3-0.65 Gm.).
