NAMES, PROPERTIES, AND DOSES OF MEDICINE. 165 
which the after expectorant effect is of great service ; also to 
unload the stomach in dyspepsia when of an inflammatory 
character. As an expectorant it is used in the various forms 
of bronchitic disease. Dose as an emetic, 15 to 30 grains ; as 
an expectorant, half to two grains. Safe in above doses. ls. 
per oz.; wine, Is. 
Iron.—Iron forms an essential part of the red corpuscles of 
the blood, as much as six and a half per cent. of the metal 
being contained in the pure colouring matter. This portion of 
the blood is apt from various causes to become deficient, and a 
state of system is then induced designated by anzemia. 
Iron preparations also produce a distinct and direct influence 
upon the nervous system, and hence their administration 1s 
indicated in debility of the system, as in many cases of chorea, 
neuralgia, hysteria, epilepsy, &c. Iron salts are often given in 
amenorrhoea as emmenagogues, but it is questionable if they act 
directly upon the uterus. They certainly do so indirectly by 
restoring the blood to its normal state, and hence causing 
the necessity of a catamenial discharge. There are about 20 
different preparations of iron, but we have not space to describe 
them all, we will give the dose of a few of the most common 
preparations. Tincture of iron or steel drops, 5 to 30 drops, 
6d. per oz. , reduced, iron, 5 to 10 grains, 3d per oz. ; carbonate, 
3 to 20 grains, 3d. per oz. Used with care. 
Jabporanp1,——The dried leaflets of pilocarpus pennatifolius, 
imported from Brazil. Jaborandi is a powerful diaphoretic and 
sialagogue. In large doses it causes vomiting. It increases the 
rapidity of the heart’s action, and diminishes arterial tension, 
causing flushing of the face, ears and neck, followed speedily by 
profuse perspiration and enormous secretion of saliva. Dose 
of the fluid extract, 43 to 14 drachms; of the tincture, 4 to 2 
drachms. Leaves, 6d per oz. Fluid extract, 9d per oz. 
Tincture, 6d per oz. Use carefully. 
JaLar.—The dried root of Ipomoea Purga, True Jalap 
plant, imported from Mexico. It is named from the city 
