According to the card, 1 tablespoon of leaves is covered with 1 glass of boiling water, left to infuse under a lid for 15 minutes and strained. Adults take 1/2 glass twice a day with meals. The card does not name a course or breaks; the raw material is stored at room temperature in a dry place protected from light.
General information (not a manufacturer's instruction): it is better to prepare the infusion fresh for the day; take care with boiling water.