Black Elder is the oldest treatment on the planet for colds and flu. It has been shown to reduce the symptoms and the duration of several types of Influenza A and B viruses. Components of Black Elder actually stop the Influenza virus from entering our cells and multiplying. Black Elder is also a major anti-oxidant herb and the most complete detox herb available as it raises immunity, opens the skin to stimulate perspiration and gently stimulates bowels and kidneys. Dosage: Take 20 drops of Swiss Herbal Remedies Black Elder tincture, three times daily, before meals. Mix with a little water. This dosage can be doubled when suffering flu or a cold.