It is possible to take medicine during menstruation, because during menstruation, it is fine as long as you do not take medicine that activates blood. No one can guarantee that no other diseases will be born during menstruation. If you catch a cold during menstruation, you also need to treat it, and as long as you treat it, you have to take medicine. Therefore, taking medicine will not affect the menstrual period, however, it must be used under the guidance of a doctor. There are some blood-boosting medications that can cause increased menstruation or dripping menstruation when taken. In addition, cold medicines may cause menstrual pain.