5 tbsp. chamomile
2 tbsp. Buckthorn bark (aged at least one year)
2 tbsp. Caraway or fennel seeds
2 tbsp. Senna
Pour 1 cup of boiling water over 1 tsp. of this mixture, steep covered for ten minutes; strain and drink tea warm.
Source: Encyclopedia of Natural Healing by Siegfried Gursche and Zoltan Rona