Sambucus nigra tea for medicinal use

Sambucus nigra tea is a herbal preparation made from the dried berries of the European elder tree.
It is commonly used in herbalism for its purported immune-boosting properties and as a remedy for colds and flu. The tea is often prepared by steeping the berries in hot water, and it may also be combined with other herbs for enhanced effects. In traditional medicine, it has been used to support respiratory health and as a mild diuretic.
However, it should be used with caution, as raw berries can be toxic.