Eucerin is drospirenone ethinyl estradiol tablet II. Taking drospirenone ethinyl estradiol tablets II keeps bleeding is not necessarily ineffective. Drospirenone Ethinyl Estradiol Tablets II is a compound preparation of estrogen and progesterone. Oral administration of Drospirenone Ethinyl Estradiol Tablets II interferes with the levels of estrogen and progesterone in the body, causing endocrine disruption, leading to partial shedding of the uterine lining and causing breakthrough bleeding. This is a side effect of the drug, easy to happen during the initial taking of the drug, with the prolongation of the time of taking the drug, most of the bleeding can gradually reduce and stop bleeding. Eating drospirenone ethinyl estradiol tablets II has been bleeding can also occur in the case of missed doses of the drug, missed doses of the drug caused by the withdrawal of hormone levels, the integrity of the endometrium can not be maintained, resulting in endometrial exfoliation bleeding. Missed doses of medication not replaced in a timely manner can reduce the effectiveness of contraception and lead to unwanted pregnancies. Taking drospirenone ethinyl estradiol tablets Ⅱ has been bleeding should be timely consultation, under the guidance of the doctor to identify the causes, give appropriate treatment.