Published February 1, 1990.
List of German Commission E Monographs (Phytotherapy)
Hibisci flos, hibiscus flowers.
Hibiscus flowers consist of the calyces of Hibiscus sabdariffa L. var. sabdariffa ruber [Fam. Malvaceae], as well as preparations thereof.
Hibiscus flowers are used for loss of appetite, for colds, catarrhs of the upper respiratory tract and stomach, to dissolve phlegm, as a gentle laxative, diuretic, and for disorders of circulation.
The claimed efficacies are not substantiated.
Since the claimed efficacies of hibiscus flowers have not been documented, a therapeutic use cannot be justified. There are no concerns for the use of this herb for decorative purposes or as a flavor corrigent.