Extractum Coptis Fluidum (N. F.)—Fluid Extract of Coptis.

Related entry: Coptis.—Gold-Thread

Preparation.—Formulary number, 151: "From the rhizome and rootlets of Coptis trifolia, Salisbury (Goldthread). Process A (see F. 135). No. 40 powder. Menstruum: Diluted alcohol"—(Nat. Form.). This preparation is seldom prescribed, and possesses no qualities that commend it in any way above hydrastis.

Medical Uses and Dosage.—(See Coptis). Dose, 5 to 60 minims.

King's American Dispensatory, 1898, was written by Harvey Wickes Felter, M.D., and John Uri Lloyd, Phr. M., Ph. D.