Action and Uses: Probably similar to, but without advantage over, hydrastis.

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

Fluidextractum Berberidis (Fldext. Berberid.), Fluidextract of Berberis, N.F.—Berberis (100%). Absolute alcohol content about 40 per cent.

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

Betaeucainae Hydrochloridum (Betaeucain. Hydrochl.), Betaeucaine Hydrochloride, U.S.P. (Eucaine Chloride, Eucaine; also known as Benzamine Hydrochloride).

A white, odorless powder. Soluble in water (1:30) and in alcohol (1:35).

Action and Uses: Local anesthetic.

Dosage: In a 2 or 3 per cent. solution for the eye or 5 to 10 per cent. solution for the nose and throat.

*Betanaphthol (Betanaph.), Betanaphthol, U.S.P. (Naphthol).

Colorless or pale buff crystalline laminae or white or yellowish powder, with a faint phenol odor and a pungent taste. Only slightly soluble in water (1:1000) and very soluble in alcohol (1:0.8).