Linctuses are preparations usually medicated with substances possessing demulcent, expectorant, or sedative properties, exhibited in mucilaginous, syrupy, or other viscous vehicles. One of the principal objects of their administration generally being the formation of a temporary protective or remedial film over the mucous membrane of the throat and bronchial region. They are usually intended to be sipped and swallowed slowly without dilution. Linctuses are usually administered in small doses of from 1/2 to 2 fluid drachms.
The British Pharmaceutical Codex, 1911, was published by direction of the Council of the Pharmaceutical Society of Great Britain.