The Potency and Stability of a New Extract of Convallaria majalis Leaves

The potency of a new extract of Convallaria majalis leaves. V. studies on the stability of convara*,†,‡

“…During the last war, adulteration of imported drugs was rather widespread (1). Adulteration during the present war does not appear to be so prevalent, owing in part to greater use of synthetic dtugs, in part to greater use of domestic wild growing or cultivated drugs and possibly in part to two decades of additional education of growers and importers by the U. S. Food and Drug Administration.…”