Are there any restrictions or precautions when using oak bark? — Oak bark herbal tea, 50 g - Norden Natur

Oak bark is a functional plant raw material with a pronounced astringent effect. Taking it internally is not recommended in acute stomach and intestinal conditions (peptic ulcer in an exacerbation, gastritis with low acidity, a tendency to constipation) or in case of individual intolerance. During pregnancy and breastfeeding, and for children, it may be used only after agreement with a doctor — there are not enough safety data for these groups. With prolonged regular use, tannins may reduce the absorption of nutrients and medicines, so it is better to take the tea and medicines at different times. If itching, burning, increased dryness or an allergic reaction appears after use, stop using it and contact a specialist. The product is not a medicine and does not replace prescribed therapy. According to the label, it is not used in case of hypersensitivity to the components and should be kept out of the reach of children.