Fenchyval

Proprietary name for fenchyl-isovalerianic ester, an almost colourless liquid recommended as a sedative in hysteria.

Feolathan

Trade-name for ferro-ammonium lactate. Issued in the form of pills each containing 1 1/2 grain.

Ferralbol

A combination of egg-albumen and iron (3 per cent.) with 1 per cent. of lecithin. Issued in 7 1/2-grain chocolate tablets.

Ferratin

The trade-name of iron albuminate, a red-brown, odourless and tasteless powder containing 7 per cent. of iron, soluble in alkali-solutions. Dose:8 grains.

Ferratogen

A haematinic preparation made by growing yeast in iron solution. Greyish-yellow powder. Dose:5 grains.

Ferratose

A liquid preparation of ferratin.

Ferricodile

Proprietary ampoules and pills of cacodylate of iron.

Ferrinol

A tasteless and non-astringent brown powder, containing 6 per cent. of iron and 4 1/2 per cent. of phosphorus as a combination with nuclein. Readily soluble in water. Dose:3 to 6 grains.

Ferroglidine

A red-brown, odourless and tasteless powder put up in tablets. A powerful haema-tinic. Dose:One to two.

Ferropyrin

An orange-red powder representing in combination about 2 parts of antipyrin and 1 part of ferric chloride. Readily soluble in water (1 in 5). Used in doses of 5 to 15 grains for anaemia, especially when accompanied by neuralgia, and externally in 1-percent. solution as a gonorrhoea-injection and in saturated solution or powder as a styptic.

Fersan

Prepared from fresh blood, and containing iron and phosphorus in combination with albuminoid bodies. Dose in anaemia:30 grains and upwards.

Fetron

An ointment-basis introduced by Liebreich, and consisting of vaseline with 3 per cent, of 'stear-inic-anilide.' Takes up more water than vaseline and less than lanoline.

Fibrolysin

A soluble compound of Thiosinamine (q.v.) with sodium salicylate. Supplied in glass ampoules containing 2 to 3 c.c. for injection.

Filicone

A principle obtained from Dryopteris spinnlosa {Aspi-dium spinulosum). Used as an anthelmintic in doses of 30 grains combined with castor oil to

Filmarone

A brown powder prepared from male-fern. Used as an anthelmintic in doses of 8 to 12 grains.

Filmogen

A trade-name for acetone-collodion.

Floricin

The residue left on dis-tilling off the volatile portion of castor oil. Used as an ointment-base.

Fluorescein

Resorcin-phtha-lein, a yellow dye, is, in weak solution, used in ophthalmic work for diagnosing ulcers, denudations, and the like, which it dyes green, while healthy surfaces are stained yellow only. The solution is made of 10 grains of the dye and 13 grains of sodium bicarbonate in 1 ounce of water.

Fomitin

A liquid extract prepared from species of Fomes, a fungus which grows on certain trees of the genus Primus. Used in bladder and menstrual affections. Dose: 1/2 to 1 fluid ounce.

Forgenin (tetramethyl - ammo -nium formate). - A crystalline substance, with an action resembling digitalis.