Oak bark

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.  

Uses

External:

• 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.  

External:

• None known.  

Internal:

• The absorption of alkaloids and other alkaline drugs may be reduced or inhibited.  

Unless otherwise prescribed:

Internal:
Daily dosage:

• 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.  

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.  

Astringent
Virustatic