_Elixir Pepsini et Ferri (Elix. Pepsin. et Ferr.), Elixir of Pepsin and Iron, N.F._--Tincture of ferric citro-chloride (7.5%) and elixir of pepsin. Absolute alcohol content about 15 per cent. DOSAGE: 8 Cc. or 2 fluidrachms (N.F.). _Elixir Pepsini et Rennini Compositum (Elix. Pepsin. et Rennin. Co.), Compound Elixir of Pepsin and Rennin, N.F._ (Essentia Pepsini, N.F. III).--Pepsin (2.25%), rennin (1.65%), lactic acid, tincture of sweet orange peel, glycerin, alcohol, oil of myristica and water. Absolute alcohol content about 19 per cent. DOSAGE: 8 Cc. or 2 fluidrachms (N.F.). _Glyceritum Pepsini (Glycer. Pepsin.), Glycerite of Pepsin, N.F._--Pepsin (8.5%), hydrochloric acid (1%) in glycerin and water. DOSAGE: 3 Cc. or 45 minims (N.F.). _Liquor Pepsini (Liq. Pepsin.), Solution of Pepsin, N.F._--Glycerite of pepsin (5%) and hydrochloric acid (1%) in glycerin and water. DOSAGE: 8 Cc. or 2 fluidrachms (N.F.). _Liquor Pepsini Antisepticus (Liq. Pepsin. Antisept.), Antiseptic Solution of Pepsin, N.F._--Pepsin (5%), menthol, eucalyptol, methyl salicylate, alcohol, glycerin and diluted hydrochloric acid in water. Absolute alcohol content about 1 per cent. USES: This solution appears misnamed, since its administration cannot render the stomach antiseptic. _Liquor Pepsini Aromaticus (Liq. Pepsin. Arom.), Aromatic Solution of Pepsin, N.F._--Pepsin (1.75%), oils of cinnamon, pimenta and clove, alcohol, hydrochloric acid and glycerin in water. Absolute alcohol content about 3 per cent. DOSAGE: 8 Cc. or 2 fluidrachms (N.F.). _Pepsinum Saccharatum (Pepsin. Sacchar.), Saccharated Pepsin, N.F._--Pepsin (10%) with sugar of milk. DOSAGE: 1 Gm. or 15 grains (N.F.). _Succus Citri et Pepsinum (Suc. Cit. et Pepsin.), Lime Juice and Pepsin, N.F._ (Succus Limettae cum Pepsino, N.F. III).--Glycerite of pepsin (40%) and lime juice. DOSAGE: 8 Cc. or 2 fluidrachms (N.F.). _Vinum Pepsini (Vin. Pepsin.), Wine of Pepsin, N.F._ (Pepsin Wine).--Glycerite of pepsin (20%) in alcohol and sherry wine. Absolute alcohol content about 23 per cent. DOSAGE: 8 Cc. or 2 fluidrachms (N.F.). =Persio (Persio), Cudbear, N.F.= (Red Indigo).--A purplish-red powder prepared from lichens. ACTION AND USES: Coloring agent. _Tinctura Persionis (Tr. Persion.), Tincture of Cudbear, N.F._--Cudbear in alcohol and water. USES: To impart a reddish color. _Tinctura Persionis Composita (Tr. Persion. Co.), Compound Tincture of Cudbear, N.F._--Cudbear and caramel in alcohol and water. USES: To impart a reddish-brown color. =*Petrolatum (Petrolat.), Petrolatum, U.S.P.= (Petrolatum Ointment, Petroleum Jelly).--A purified mixture of semisolid hydrocarbons from crude petroleum. An unctuous, nearly odorless and nearly tasteless semisolid. Insoluble in water and almost insoluble in alcohol. ACTION AND USES: Protective to the skin and basis for ointments, etc.