Formaldehyde

In 40-percent. solution was introduced under the name of 'Formalin' as an antiseptic. Liv. formaldehydi, B.P., is 36 to 38 per cent. A I-in-1,000 solution is used as an eye-lotion, and for surgical purposes 1-in-400 to 1-in-200 solutions are employed.

Formamint

The trade-name of tablets composed of formaldehyde, menthol, and milk sugar. Used chiefly as an oral antiseptic.

Forman (Formawn)

A combination of formaldehyde and menthol, which, on heating, gives up both of these bodies. Used with hot water as an inhalation in catarrhs and also as formawn-wool for the nostrils and ears.

Formaquol

A trade-name for sodium formate.

Formates

See Acid, Formic.

Formestone

Trade-name for formaldehyde aluminium acetate. Used as dusting-powder.

Formicin (formaldehyde acet-amide).-A thick liquid, miscible with water or alcohol and used as an antiseptic. Dose:10 to 15 grains.

Formidin

Methylene disali-cylic iodide. A white powder turning reddish-yellow on exposure to light, insoluble in water, acids, and alcohol, but dissolving readily in alkaline solutions with decomposition, hence its use as an intestinal antiseptic, in doses of I to 5 grains. Also used as an iodoform substitute.

Formin is hexamethylene-tetra-mine, (CH2)6N4 - i.e.,hexamine, B. P. The salicylate of the substance is known as Saliformin, and the combination with iodoform is a red, crystalline powder called Iodofor-min, which contains 75 per cent. of iodoform.

Formobas

A proprietary formaldehyde preparation the solutions of which are slightly alkaline.

Formoform

A mixture of formaldehyde, thymol, zinc oxide, and starch, used chiefly as a foot-powder.

Formopyrin (methylene-dianti-pyrin). - A crystalline compound combining the action of its components (antipyrin and formaldehyde), insoluble in water. Dose: 5 to 15 grains.

Formurol

A combination of hexamethylene - tetramine with sodium citrate. A white powder, used as a urinary antiseptic. Dose: 15 grains.

Formylphenetidin

Para-ethoxyformanilide, in crystalline needles, soluble in hot water. Dose: 3 to 6 grains for cramp.

Fortoin

The trade-name of a compound of cotoine and formaldehyde. Occurs as a yellow powder, insoluble in water, soluble in alcohol and alkalies. Given in 3-grain doses for diarrhoea, and used in 1/2 to I per cent. solutions (5-per-cent. alcohol) as an antiseptic.

Fulmargin

A special solution of colloidal silver (for injections) in 5-c.c. ampoules.

Gallacetophenone

The methyl-ketone derivative of pyro-gallol. A yellowish powder, used as an ointment (10-per-cent.) or solution (1 part of the powder and 8 parts of sodium acetate in 25 parts of water) as a cutaneous parasiticide and in psoriasis.

Gallanol

A compound of aniline and gallic acid, occurring as a grey powder, and used in psoriasis and eczema as a dusting-powder (pure or I to 3 of salt), as an ointment with vaseline Эj.-3j. to ), or in alcoholic solution (20 per cent. with 1 per cent. of solution of ammonia).