Epitome of the Pharmacopeia of the United States and the National Formulary / With Comments

by Albion Walter Hewlett; William August Puckner; Torald Hermann Sollmann; Martin I. Wilbert

Extractum Haematoxyli (Ext. Haematox.), Extract of Hematoxylon, N.F.—An aqueous extract.

Dosage: 1 Gm. or 15 grains (U.S.P.).

Hamamelidis Folia (Hamamel. Fol.), Hamamelis Leaves, N.F. (Witch Hazel Leaves).

Action and Uses: Astringent, without advantage over other tannin-bearing drugs (krameria, etc.).

Dosage: 2 Gm. or 30 grains (N.F.).

Fluidextractum Hamamelidis Foliorum (Fldext. Hamamel. Fol.), Fluidextract of Hamamelis Leaves, N.F.—Hamamelis leaves (100%). Absolute alcohol content about 25 per cent.

Dosage: 2 Cc. or 30 minims (N.F.).

Hamamelis (Witch Hazel).

Aqua Hamamelidis (Aq. Hamam.), Hamamelis Water, U.S.P. (Witch Hazel Water, Distilled Extract of Witch Hazel).—Witch hazel bark, twigs, smaller stems or entire shrub, distilled with water and preserved with about 14 per cent. of alcohol.

Uses: Employed externally, for contusions. It owes its feeble activity mainly to the alcohol.