Contraindications for mistletoe therapy

There are only a few situations in which mistletoe therapy is not indicated: 

  • You are allergic to mistletoe, which is very rare. 
  • You have a high fever or inflammatory/infectious disease.
  • You have an autoimmune disease with very distinct symptoms or you are treated with an agent suppressing your immune response (immunosuppressive therapy).
  • You have an over active thyroid gland (hyperthyroidism) with increased heart beat (tachycardia).

Even if an allergy-like ("pseudoallergic") reaction occurs this does not mean that you do not generally tolerate mistletoe therapy. The doctor can then choose a preparation with a very low concentration and slowly increase it. 

Since the effects of Iscador on pregnancy, birth and the development of the child after birth, especially on the formation of blood cellular components and the immune system of the unborn child/infant, have not been investigated, a possible risk for humans is not known. Caution should therefore be taken when using the product during pregnancy and the breast-feeding period.


Last update: March 1st, 2023/AT1

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