According to the card, adults take 30-50 drops 3-4 times a day before meals, and children over 12 take 1 drop for each year of life 3-4 times a day. The card does not name the length of the course. During pregnancy and breastfeeding a doctor should be consulted; the recommended daily amount must not be exceeded.
General information (not a manufacturer's instruction): the drops are usually diluted with a little water, and a child's dose and duration are best agreed with a doctor.