Published February 1, 1990.
List of German Commission E Monographs (Phytotherapy)
Quercus cortex, oak bark.
Oak bark consists of the dried bark of young branches and saplings of Quercus robur L. and/or Q. petraea (Mattuschka) Lieblein [Fam. Fagaceae], harvested in the spring, as well as their preparations in effective dosage.
The drug contains tannins.
Inflammatory skin diseases. Internal:
Nonspecific, acute diarrhea, and local treatment of mild inflammation of the oral cavity and pharyngeal region, as well as genital and anal area. Contraindications Internal:
None known. External:
Skin damage over a large area. Baths:
Full baths should not be taken, regardless of the active ingredients in the bath, under the following conditions:
weeping eczema and skin damage covering a large area; febrile and infectious diseases; cardiac insufficiency stages III and IV (NYHA); hypertonia state IV (WHO). Side Effects None known.
None known. Internal:
The absorption of alkaloids and other alkaline drugs may be reduced or inhibited. Dosage Unless otherwise prescribed:
3 g of drug; equivalent preparations. For rinses, compresses and gargles:
20 g drug per 1 liter of water; equivalent preparations. For full and partial baths:
5 g drug per 1 liter of water; equivalent preparations. Mode of Administration Comminuted herb for decoctions and other galenical preparations for internal and topical use.
If diarrhea persists longer than 3 - 4 days, a physician must be consulted.
Other areas of application:
Not more than 2 - 3 weeks.