The brown secretion of Eusebio may be a side effect of the drug. Since Eusebio is the least dose of all birth control pills, containing only 0.025mg of estrogen, such low estrogen sometimes cannot maintain the integrity of the endometrium, so the phenomenon of brown secretion will appear during the process of eating. If the symptoms are not very serious, you can continue to take the medicine until 28 days. If you feel uncomfortable and the amount of bleeding is a bit too much, you can add more medicine at this time, and you can take one and a half pills every day until 28 days. After increasing the dose of medicine, the dose of hormone is also increasing, so it can ensure the integrity of the endometrium and there will be no bleeding.