White Willow bark

Salicis cortex, white willow bark.  

White willow bark consists of the bark of the young, 2- to 3-year-old branches harvested during early spring of Salix alba L., S.  purpurea L., S.  fragilis L.  and other comparable Salix species [Salicaceae], as well as their preparations in effective dosage.  The bark contains at least 1 percent total salicin derivatives, calculated as salicin (C₁₃H₁₈O₇, MW 286.3) and related to the dried herb.  

Uses

Diseases accompanied by fever, rheumatic ailments, headaches.  

Contraindications

See Interactions with Other Drugs

Side Effects

See Interactions with Other Drugs

Because of white willow bark's active constituents, interactions like those encountered with salicylates may arise.  However, in reviewing the scientific literature available so far, there are no definite indications for this.  

Unless otherwise prescribed:

• Average daily dosage corresponding to 60 - 120 mg total salicin.  

Liquid and solid preparations for internal use.  

Note:Combinations with diaphoretic drugs could be considered.  

Antipyretic
Antiphlogistic
Analgesic