Published July 6, 1988; Revised March 13, 1990.
List of German Commission E Monographs (Phytotherapy)
Primulae radix, primrose root, cowslip root. [This herb is not evening primrose, Oenothera biennis.]
Primrose root consists of the dried rhizome with roots of Primula veris L. and/or P. elatior (L.) Hill [Fam. Primulaceae], as well as its preparations in effective dosage.
The drug contains saponins.
Catarrhs of the respiratory tract.
Stomach upsets and nausea can occasionally occur.
0.5 - 1.5 g of drug; 1.5 - 3 g of tincture (according to the Austrian Pharmacopoeia 9); equivalent preparations. Mode of Administration Comminuted drug for teas and cold macerations, as well as other galenical preparations for internal use.