Phenyform

A grey powder consisting of phenol and formaldehyde, used as an antiseptic dusting-powder for wounds.

Phesin

Sodium phenacetin sulphonate, a reddish powder, soluble in water. Dose:7 1/2 grains.

Phosote

The trade-name of creosote phosphate, a colourless, syrupy fluid, containing 80 per cent. of creosote and having similar therapeutic properties.

Physostol

A proprietary 1-per-cent. solution of physostig-mine in olive oil.

Phytin is the trade-name of anhydroxymethylenediphosphate of calcium and magnesium (a constituent of green plants), which acts therapeutically as phosphorus rather than as a phosphate. Dose:8 grains.

Piperazine (diethylenediamine) occurs in colourless crystals, soluble in water. A uric-acid solvent used in gout, or to prevent it. Dose:2 to 10 grains in aerated water.

Piperidine

The bitartrate of the synthetic base (hexahydropyri-dine) is used like piperazine. Occurs in colourless crystals, soluble in water. Dose: 10 to 15 grains.

Pipeline, the alkaloid of black pepper, has been used as an antipyretic and stomachic in malaria and dyspepsia. Is in yellow prisms, soluble in alcohol. Dose: antipyretic, 4 to 8 grains; stomachic, 1 grain.

Piscarol is the name of a thickish, tar-like fluid, insoluble in water, which is stated to possess the therapeutic properties of ichthyol.

Pittylen is said to be identical with Eupecin (q.v.).

Pleistopon

Narcotine free Pantopon {q.v.).

Plejapyrin

A crystalline compound of benzamide and phena-zone; a white, water-soluble powder. Dose: 15 grains.

Pneumin

The trade-name of methylene creosote, put up in 1/2-grain tablets as a tuberculosis-specific.

Pollantin

A serum, supplied as liquid or powder, for use against hay fever. Known also as Grami-nol. Pollantin R. is the dilution with milk sugar for snuffing.

Polyformin occurs in soluble and insoluble forms, and is a combination of resorcin (2 mol.) and hexa-methylene-tetramine (1 mol.), so that it yields formaldehyde on heating. Recommended for skin-diseases, the insoluble kind as a substitute for iodoform.

Proiodin, or Lactoiod, is obtained by the action of iodine on casein, and contains about 8 per cent. of iodine. A yellowish-white powder, insoluble in water. Dose: 15 grains.

Propal is a name for dipropyl-barbituric acid, and Propol is a vasogen of Propolisin, a product from the destructive distillation of beeswax.

Propasin

Para-amidobenzoic propylester, a local anaesthetic. In white crystals, but marketed in pastilles, ointment, suppositories, bougies, etc. Dipropasin is a condensation-product of it, said to ease intestinal pain when given in 8 to 15 grain doses.

Propionyl Salicylate has been proposed as an antirheumatic.

Proponal

A relative of veronal, being dipropyl-barbituric acid. Insoluble in water, but soluble in alkalies; it thus dissolves in the intestine only. Dose, in cachets: 3 to 5 grains as a hypnotic.