Hypersensitivity to the active substance, to other plants from the Araliaceae family (the botanical family to which ivy belongs), or to any excipient (liquid sorbitol (non-crystallizing) (E420), potassium sorbate (E202), xanthan gum (E415), anhydrous citric acid (E330));
Do not use in children under 2 years old due to the risk of worsening respiratory symptoms.