Pegnin

A rennet compound used to prepare milk for infants and invalids.

Pelletierine (Punicine)

A mixture of pelletierine and iso-pelle-tierine. The salts which are used medicinally are:Hydrobromide, a brown, thickish fluid, soluble in water and alcohol, dose 2 grains; sulphate, similar in appearance and properties to the former, dose (for tapeworm) 6 grains with 8 grains of tannin; tannate, a greyish-brown, hygroscopic, an tasteless powder, dose 5 grains in an ounce of water, followed in half an hour by a dose of castor oil or senna.

Pellidol

Diacetyl amido-azo-toluol. Resembles azodermin in appearance, properties, and uses (promoting skin-growth). Azodolen is a combination of iodolen (iodol-albumin) and pellidol for the same purpose.

Pellotine, the alkaloid of An-halonium Williamsii, which has hypnotic properties. The hydrochloride is in white crystals, soluble in water. Dose:I grain.

Pergenol

So-called 'solid hydrogen peroxide,' being a mixture of sodium perborate and sodium bitartrate in molecular proportions. Used as an antiseptic.

Perhydrol

Merck's peroxide of hydrogen (30 per cent. by weight = 100 vol. H202) ; magnesium and zinc perhydrol are the peroxides of these bases.

Peristaltin

The name given to a water-soluble glucoside, C14H1808, obtained from cascara sagrada, recommended as a laxative for administration by subcutaneous injection.

Peronine

The trade-name for hydrochloride of benzoyl morphine, a white powder soluble in water and dilute alcohol. A sedative in asthma and bronchial affections. Dose:1/4 to I grain (maximum 3 grains).

Pertussin

A proprietary preparation of German thyme, recommended for whooping-cough. A homoeopathic medicine is similarly named. . Peruol. - A 25-per-cent. solution in castor oil of peruscabin (synthetic benzoic acid benzyl ester, a constituent of Peru balsam). Used as a remedy for itch. . Phenamin. - Another name for Phenocoll (q.v.).

Phenegol

A nitro derivative of paraphenol sulphonate in combination with mercury (33 per cent.) and calcium. A brown powder, soluble in water. Is described as an 'egole,' and has powerful bactericidal properties.

Phenocoll Hydrochloride

The hydrochloride of. the amido-acetic derivative of paraphenetidin (i.e., phenacetin plus an amido group). A colourless, crystalline powder, soluble 1 in 16 of water. Dose:5 to 15 grains in acute rheumatism.

Phenoltetrachlorphthalein

Recommended to be given sub-cutaneously as a laxative, especially for the insane. May also be given by the mouth in the same doses as phenolphthalein.

Phenosal

Paraphenetidin acetyl-salicylate, a colourless, crystalline compound, sparingly soluble in water. Dose:7 1/2 grains.

Phenostal

Tablets containing diphenyl-oxalic ester, which dissociates into carbolic and oxalic acids when treated with water. Used to make antiseptic and disinfecting solutions.