853. Alteratives
Alteratives are medicines which restore health to the constitution, without producing any sensible effect, such as sarsaparilla, sulphur, &c.
854. Analeptics
Analeptics are medicines that restore the strength which has been lost by sickness, such as gentian, bark, &c.
855. Anodynes
Anodynes are medicines which relieve pain, and they are divided into three kinds,