LITHIUM. 4 7 



6. ACTION AND USES OF THE DIFFERENT SALTS OF AMMONIA. 



These maybe thus summarised : Liquor Ammoniac Fortior 

 and Liquor Ammonia are used as stimulants and vesicants, the 

 former externally only. Ammonia Carbonas a volatile stimu- 

 lant, emetic, and double expectorant (through the nerves and 

 secretions). Ammonii Chloridum a local refrigerant, a gastric, 

 intestinal, and hepatic stimulant, nervous stimulant, diuretic 

 double expectorant, and diaphoretic (hence called an " altera- 

 tive"). Liquor Ammonia A cctatis^ diaphoretic and diuretic 

 (febrifuge), and nervous stimulant. Liquor Ammonia Citratis 



diuretic and diaphoretic. Spiritus Ammonia Aromaticus 



agreeable and powerful carminative, antacid, and general 

 stimulant. Ammonia Phosphas direct cholagogue, possibly 

 an alkaliniser of the blood. Spiritus Ammonia Fcetidus. (See 

 Assafcetida.) Ammonia Benzoas. (See Benzoin.} Ammonii 

 Bromidum. (See Bromum.} 



LITHIUM. L. 7. 

 Only two salts of this metal are officinal : 



Carlxmas* Carbonate of Lithia. L 2 C0 3 . 



Characters. A white powder, or minute crystalline grains ; 

 alkaline. Solubility, 1 in 100 of water. 



Impurities. Lime, alumina; detected by lime-water. 

 Deficiency of lithia ; detected by weight of residue. 



Dose. 3 to 6 gr., in 3 or 4 oz. of aerated water. 



Preparation. 



a. Liquor Lithias Efforvescens. Effervescing Solu- 

 tion of Lithia. Lithia Water. Made like Potash 



10 gr. to 1 pint. Dose, 5 to 10 ti.oz. 

 From Lithia Carbonas is made : 



b. Lithia Citraa. Citrate of Lithia. LjC.H.,0... 

 Source. Made by dissolving Carbonate of Lithia in 



a solution of Citric Acid, and evaporating. 



Characters. A white amorphous deliquescent 

 powder. Solubility, 1 in 2 of water. Dose, 5 to 10 gr. 



ACTION AND 1 

 1. IMMEDIATE LOCAL ACTION. 



.E.rttrft??>/, lithia may be used as a t'tum-ntation in | 

 Internal/i/, lithium has doubtless an antacid action on the 



