Pellitory.—Topical Sialagogue; not used internally.—Preparation: Tr. (1:5).
Pyridine Merck.—C.P.
Colorl., limpid, hygroscopic liq.; empyreumatic odor; sharp taste.—Miscible with water, alcohol, ether, fatty oils, etc.—Respiratory Sedative, Antigonorrhoic, Antiseptic.—Uses: Asthma, angina pectoris, dyspnea, gonorrhea, etc. Contra-indicated in heart weakness.—Dose: 2—10 drops, several t. daily in water. Usually by inhalation; 45—75 ♏, evaporated spontaneously in room. As urethral injection, 1/3% solut.; as paint, 10% solut.
Pyrogallol,—see Acid, Pyrogallic.
Quassia—U.S.P.
Dose: 10—30 grn.—Preparations: Ext. (D., 2—5 grn.); F.E. (1:1); Tr. (1:10). Infus. (1:60).—Used by enema as teniacide.
Quassin, Merck.—C.P.
Intensely bitter cryst. or powd.—Sol. in alcohol, chloroform; slightly in water.—Tonic, Stimulant.—Uses: Invigorate digestive organs.—Dose: 1/30—1/3 grn.
Quillaja—U.S.P.
Soap Bark.—Expectorant. Antiparasitic. Antihidrotic—Dose: 10—30 grn.—Preparation: Tr. (1:5).