Expectorants are medicines which increase expectoration, or the discharge from the bronchial tubes, such as ipecacuanha, squills, opium, ammoniacum.
888. Febrifuges
Febrifuges are remedies used in fevers, such as all the antimonials, bark, quinine, mineral acids, arsenic.
889. Hydragogues
Hydragogues are medicines which have the effect of removing the fluid of dropsy, by producing watery evacuations, such as gamboge, calomel, &c.
890. Hypnotics
Hypnotics are medicines that relieve pain by procuring sleep, such as hops, henbane, morphia, poppy.