Listerine

Merck's 1899 Manual of The Materia Medica · 1899 · p. 1

Not completely defined.—(Stated: "E ential antiseptic constituents of thyme, eucalyptus, baptisia, gaultheria, and mentha arvensis, with 2 grn. benzo-boric acid, in each fl. dr.—Clear, yellow liq. of arom. odor.—Antiseptic, Deodorant, Disinfectant.— Dose: 1 fl. dr., diluted.— Extern. generally in solut. up to 20%.")