Ethyl- Urethane. CO (NH2) (O.C2 H5.) Ethyl ether of carbaminic acid. Ethyl Carbamate.

This substance was proposed as a hypnotic by Prof. 0. Schmiede-berg of Strasbourg, in 1885, who named it Urethane.

Crystalline, with ethereal odour and saline taste: soluble in twice its weight of water and alcohol, and melting at about 120° F.

Therapeutics. A useful mild hypnotic, inducing a natural uncomatose pleasant sleep. Practitioner, 1885. Useful in simple insomnia, with but little disturbing effect on the general functions, and therefore called for in exhausting diseases. "In large and continued doses, does harm." - Brit. Med. Jour., 2-11-89.

Dose, 15 to 40 grains, in powder or solution: 30 grains a fair usual dose.

Formula:

Urethane............... 2 drachms.

Syrup Simp. ............ 1 ounce.

Aqua ............... 3 ounces.

Two teaspoonsful for a dose. (Am. Dgt. November, 1887, p. 211.)

Æhyliden Urethane. C8 H16 N2 O4 or

In white, silky, needle crystals, soluble in hot water, alcohol and ether.

Urtica Dioica. Nettle. N. O. Urticacea.

The root is diuretic, and reported astringent in uterine hæmorrhage, and as a good diuretic in dropsy. Dose of fluid extract, 1 to 2 fluid drachms, diluted with water, also on wool as a plug in epistaxis. The poisonous albuminoid, or as formerly believed, the free formic acid in the sharp hairs has, by irritation, benefited local palsy.