=*Hyoscyamus (Hyosc.), Hyoscyamus, U.S.P.= (Henbane, Hyoscyami Folium, P.I.).--Leaves and tops, yielding not less than 0.065 per cent. of alkaloids. ACTION AND USES: Similar to those of belladonna. DOSAGE: 0.25 Gm. or 4 grains (U.S.P.). _Extractum Hyoscyami (Ext. Hyosc.), Extract of Hyoscyamus, U.S.P._--One Gm. extract represents about 4 Gm. hyoscyamus. Yields about 0.25 per cent. of alkaloids. DOSAGE: 0.06 Gm. or 1 grain (U.S.P.). _Fluidextractum Hyoscyami (Fldext. Hyosc.), Fluidextract of Hyoscyamus, U.S.P._ (Fluidextract of Henbane).--Hyoscyamus (100%) yielding about 0.065 per cent. of alkaloids, chiefly hyoscyamine. Absolute alcohol content about 60 per cent. DOSAGE: 0.2 Cc. or 3 minims (U.S.P.). _Oleum Hyoscyami Compositum (Ol. Hyosc. Co.), Compound Oil of Hyoscyamus, N.F._ (Balsamum Tranquillans).--Infused oil of hyoscyamus (hyoscyamus 10%) flavored with oils of lavender, peppermint, rosemary and thyme. _*Tinctura Hyoscyami (Tr. Hyosc.), Tincture of Hyoscyamus, U.S.P._ (Tincture of Henbane, Hyoscyami Tinctura, P.I.).--Hyoscyamus (10%), yielding about 0.0065 per cent. of hyoscyamus alkaloids; in diluted alcohol. Absolute alcohol content about 47 per cent. DOSAGE: 2 Cc. or 30 minims (U.S.P.). =*Hypophysis Sicca (Hypophysis Sic.), Desiccated Hypophysis, U.S.P.= (Desiccated Pituitary Body).--The posterior lobe obtained from the pituitary body of cattle. A yellowish or grayish powder with a characteristic odor. Partially soluble in water. ACTION AND USES: Solutions are used, hypodermically, to strengthen uterine contractions in prolonged labor. They also stimulate peristalsis and have been used with some success after abdominal operations and as a vasomotor stimulant. Oral administration is ineffective. DOSAGE: 0.03 Gm. or 1/2 grain (U.S.P.). _*Liquor Hypophysis (Liq. Hypophysis), Solution of Hypophysis, U.S.P._ (Solution of the Pituitary Body).--Contains the water-soluble principles from the fresh posterior lobe of the pituitary body of cattle. Assayed by testing against a standard solution of beta-iminazolyl-ethylamine hydrochloride by the method of the U.S. Hygienic Laboratory. DOSAGE: 1 Cc. or 15 minims (U.S.P.). =Ignatia (Ignat.), Ignatia, N.F.= (Saint Ignatius Bean, Ignatia Amara).--Seeds of _Strychnos ignatii_. ACTION AND USES: Constituents and actions similar to those of nux vomica, over which ignatia has no advantage, being less reliable. DOSAGE: 0.06 Gm. or 1 grain (N.F.). _Extractum Ignatiae (Ext. Ignat.), Extract of Ignatia, N.F._ (Powdered Extract of Ignatia).--A hydroalcoholic extract, yielding about 6 per cent. of alkaloids. DOSAGE: 0.03 Gm. or 1/2 grain (N.F.). _Tinctura Ignatiae (Tr. Ignat.), Tincture of Ignatia, N.F._--Ignatia (10%), yielding about 0.2 per cent. of ignatia alkaloids; in alcohol and water. Absolute alcohol content about 85 per cent. DOSAGE: 0.6 Cc. or 10 minims (N.F.).