Extract of Hen′bane

Syn. Extract of hyoscyamus ; Extractum hyoscyami (B. P.), Succus spi atus hyoscyami , L. Prep. 1. (Ph. L.) From the fresh leaves and leaf stems of common henbane ( Hyoscyamus niger ), as EXTRACT OF ACONITE —Ph. L. 2. (Ph. E.) As EXTRACT OF FOXGLOVE —Ph. E. 3. (Ph. P.) From the fresh leaves and young branches, as EXTRACT OF BELLADONNA .— Dose , 3 to 6 gr. 4. (Ph. U. S.) From the expre ed juice coagulated by heat and strained. Obs. In the Paris Codex Extracts are ordered to be prepared from henbane both by the proce es Nos. 1 and 4 above.— Product (by the ordinary method):—1 lb. of the fresh leaves yielded fully 8 dr. of extract (Geiger); 1 cwt. yielded 4 to 5 lb. (Brande); 1 cwt. of the recent plant yielded, by an ordinary screw pre , 59 1 ⁄ 2 lbs. of juice, and this evaporated in a water bath gave 5 lbs. 9 oz. of extract (Squire); 1 3 ⁄ 4 cwt. of the green herb yielded 11 lbs. of extract (Gray).— Dose , 2 to 10 gr.; as an anodyne, hypnotic, antispasmodic, sedative, and narcotic, more especially in those cases in which the use of opium is objectionable. Externally , as a topical application to sore or inflamed parts, either made into an ointment or spread on plaster. 5. (Alcoholic; Extractum hyoscyami alcohol i cum , L.) The formulæ of the Ph. Bad., Par. & U. S. are similar to those for ALCOHOLIC EXTRACT OF ACONITE . 6. ( E. of henbane seeds ; Extractum seminum hyoscyami , L.—P. Cod.) An extract of the seeds made with spirit sp. gr. ·900 (=about 16 o. p.) is di olved in 4 parts of cold water, and the solution filtered and evaporated. Stronger than the simple extract.— Dose , 1 ⁄ 4 to 3 gr.