Squill stimulates the bronchial mucous membrane and is given in bronchitis after subsidence of the acute inflammation. It is generally used in combination with other stimulating expectorants, its effects being thereby increased, and is considered most useful in chronic bronchitis, catarrhal affections and asthma. The tincture is administered combined with other expectorants, especially ipecacuanha and ammonium carbonate. Vinegar, Oxymel and Syrup of Squill are also common constituents of expectorant cough mixtures.
SPIRIT OF HARTSHORN
A mixture of ammonium bicarbonate and ammonium carbamate obtained from ammonium sulfate and calcium carbonate by sublimation; formerly used as an expectorant and in smelling salts; so called because originally obtained from deer antlers.
SWEET SPIRIT OF NITRE
Sweet spirit of nitre appears to have been known so early as the fifteenth century, if not previously. in its effects on the system , it is a nervous stimulant , with the property of increasing the secretion of urine or perspiration, according as it may be directed to the kidneys or the skin . in its local action, it is somewhat excitant to the stomach , and, therefore, operates as a carminative. if allowed to evaporate on the surface, it occasions a sensation of coldness; and it probably produces a similar effect in the stomach upon its first administration, whence its reputation as a refrigerant may have originated