Sage tea. Dried leaves from the common sage plant (Salvia officinalis), with a tea (infusion) made from them. This herbal tea can be used as an astringent that reduces the flow of secretions, as in diarrhoea and milk production. The antiseptic properties can help in intestinal infections and its carminative properties help expel intestinal gases. Sage does contain some poisonous parts and can be toxic in high doses.