_Petroxolinum Eucalyptolis (Petrox. Eucalyptol.), Eucalyptol Petroxolin, N.F._ (Eucalyptol Petrox).--Eucalyptol (20%) in liquid petrolatum. =*Eucalyptus (Eucalypt.), Eucalyptus, U.S.P.= (Eucalyptus Leaves, Blue Gum Leaves). ACTION AND USES: Principally those of the volatile oil. Not used as such. _Fluidextractum Eucalypti (Fldext. Eucalypt.), Fluidextract of Eucalyptus, U.S.P._--Eucalyptus (100%). Absolute alcohol content about 60 per cent. DOSAGE: 2 Cc. or 30 minims (U.S.P.). =Eugenol (Eugenol), Eugenol, U.S.P.=--A constituent of oil of clove. A nearly colorless, thin liquid, with a strong odor of cloves and a pungent, spicy taste. ACTION AND USES: Same as those of oil of cloves, over which it has no material advantage. DOSAGE: 0.2 Cc. or 3 minims. =Euonymus (Euonym.), Euonymus, N.F.= (Wahoo Bark).--Bark of the root. ACTION AND USES: Obsolete cathartic; toxic digitalis effects. Caution: The uncertain absorption of this drug makes its use inadvisable. DOSAGE: 0.5 Gm. or 8 grains. _Extractum Euonymi (Ext. Euonym.), Extract of Euonymus, N.F._ (Powdered Extract of Euonymus).--A hydroalcoholic extract, 1 Gm. representing the water-alcohol-soluble constituents of 4 Gm. of euonymus. DOSAGE: 0.125 Gm. or 2 grains (N.F.). _Fluidextractum Euonymi (Fldext. Euonym.), Fluidextract of Euonymus, N.F._--Euonymus (100%). Absolute alcohol content about 70 per cent. DOSAGE: 0.5 Cc. or 8 minims. (N.F.). =Eupatorium (Eupator.), Eupatorium, N.F.= (Boneset, Thoroughwort).--Leaves and flowering tops. ACTION AND USES: Domestic diaphoretic "tea." No established indications for its use. DOSAGE: 2 Gm. or 30 grains (N.F.). _Fluidextractum Eupatorii (Fldext. Eupator.), Fluidextract of Eupatorium, N.F._--Eupatorium (100%). Absolute alcohol content about 40 per cent. DOSAGE: 2 Cc. or 30 minims (N.F.). =Euphorbia Pilulifera (Euphorb. Pilul.), Euphorbia Pilulifera, N.F.= (Pill Bearing Spurge).--Entire flowering plant. ACTION AND USES: Irritant; formerly used in respiratory diseases, but without established indications. DOSAGE: 2 Gm. or 30 grains (N.F.). _Fluidextractum Euphorbiae Piluliferae (Fldext. Euphorb. Pilul.), Fluidextract of Euphorbia Pilulifera, N.F._--Euphorbia pilulifera (100%). Absolute alcohol content about 40 per cent. DOSAGE: 2 Cc. or 30 minims (N.F.). =EXTRACTA, EXTRACTS= (Solid Extracts).--Soft, solid (pilular extracts) or powdered (powdered extracts) preparations made by evaporating a solution of the soluble ingredients of vegetable or animal drugs at a low temperature. Powdered extracts are often made from the solid extracts by the addition of inert material. The strength of most extracts is four times that of the drug. For the various official extracts see under the names of the respective drugs. =Farfara (Farfar.), Coltsfoot, N.F.= (Coltsfoot Leaves, Tussilago Leaves). ACTION AND USES: Demulcent expectorant; no advantage over linseed. DOSAGE: 4 Gm. or 1 drachm.