Extractum Iridis, B.P.C. Extract of Iris.
Botanical name:
Related entries: Blue Flag
Synonyms.—Iridin; Extractum Iridis Siccum.
| Blue Flag Rhizome, in No. 60 powder | 100.00 | | | 20 ounces |
| Calcium Phosphate, a sufficient quantity. | |||
| Alcohol (60 per cent.), a sufficient quantity. | |||
Exhaust the drug by percolation with the alcohol, recover the alcohol by distillation, and evaporate the remaining liquid to dryness; reduce the residue to fine powder, add 5 per cent. of calcium phosphate, again dry, powder, and preserve in a well-stoppered bottle.
Dose.—½ to 2 decigrams (1 to 3 grains).
