Published January 17, 1991.
List of German Commission E Monographs (Phytotherapy)
Grindeliae herba, gumweed herb.
Gumweed herb consists of the dried tops and leaves of Grindelia robusta Nutt. and/or G. squarrosa (Pursh) Dunal [Fam. Asteraceae], gathered during flowering season, as well as their preparations in effective dosage.
The drug contains essential oil.
Catarrhs of the upper respiratory tract.
In rare cases irritation of the gastric mucosa.
Unless otherwise prescribed:
4 - 6 g of drug or 3 - 6 g gumweed fluidextract (Erg. B. 6); tincture (1:10 or 1:5. ethanol 60 percent - 80 percent [v/v]), 1.5 - 3 ml; equivalent preparations. Mode of Administration Comminuted herb for teas and other galenical preparations for internal use.
In vitro antibacterial.