Extractum Valerianae, B.P.C. Extract of Valerian.
Botanical name:
Related entries: Valerian
| Valerian Rhizome, in No. 40 powder | 100.00 | | | 20 ounces |
| Alcohol (70 per cent.), a sufficient quantity. | |||
Moisten the drug with the alcohol, pack in a percolator, cover the powder with more of the alcohol, allow to macerate for forty-eight hours, and exhaust by percolation; then recover most of the alcohol by distillation, and evaporate the residue to a firm extract.
Dose.—6 to 30 centigrams (1 to 5 grains).
