Black horehound is traditionally used as a tea or tincture. Approximately 2 teaspoons of the leaves are added to 1 cup hot water and allowed to steep for 10 to 15 minutes.¹⁰ One cup is drunk three times per day. If a tincture is preferred, 1 to 2 ml may be taken three times per day. Black horehound is rarely used alone, and is frequently combined with meadowsweet, chamomile, or ginger for relief of nausea.