Plasma Picis Liquidae.—Plasma of Tar.
Related entry: Pix Liquida (U. S. P.)—Tar
Preparation.—Take of finely powdered starch, 2 drachms; glycerin, purified tar, each, 6 ounces. Add the glycerin, warm, to the starch, stir well together, heat to 115.5° C. (240° F.), gradually add the tar, and stir constantly until thoroughly incorporated (Brady).
Action and Medical Uses.—This will be found useful as a local application to wounds, ulcers, and in several forms of cutaneous diseases.
King's American Dispensatory, 1898, was written by Harvey Wickes Felter, M.D., and John Uri Lloyd, Phr. M., Ph. D.