Piperin Merck.—U.S.P.

Stomachic and Antiperiodic.—Uses: Feeble digestion, and as substitute for quinine in remittent and intermittent fevers.—Dose: Stomachic, 1/2—1 grn.; antiperiodic, 6—8 grn., both in pills.

Pitch, Burgundy—U.S.P.

Used only extern., as counterirritant.—Preparations: Plaster (80 per cent.); Cantharidal Pitch Plaster (8 per cent. cerate cantharides, 92 per cent. pitch).

Podophyllin,—see Resin, Podophyllum.

Podophyllum—U.S.P.

May Apple.—Preparations: Ext. (D., 2—5 grn.); F.E. (D., 10—30 min.); Resin (D., 1/8—1/2 grn.).—See also, Resin Podophyllum.

Pomegranate—U.S.P.

Dose: 1—2 drams, as decoct. (1:4) or fl. ext. (1:1).—See also, Pelletierine.

Potassa,—see Potassium Hydrate.