The generic name of Eucerin is Drospirenone Ethinyl Estradiol Tablets, the duration of effect is about 32 hours or so, but this product needs to be taken regularly for a long period of time, otherwise it will not produce a stable effect. Drospirenone ethinyl estradiol tablets are mainly used for female contraception. It should be taken for at least 7 consecutive days in order to produce the desired contraceptive effect, and the effect lasts for about 32 hours after each dose, so regular long-term use of the drug can always produce the contraceptive effect. If you miss a dose or stop taking the medicine, it will not produce a better contraceptive effect and you need to follow the instructions to remedy the situation. Common adverse reactions to this product include irregular vaginal bleeding, nausea, breast tenderness and other early pregnancy-like reactions, moodiness, depression, and headache. It is contraindicated in pregnant and lactating women, unexplained vaginal bleeding, and those who are allergic to the product. Drospirenone ethinyl estradiol tablets need to be used under the guidance of a physician, do not take the drug blindly, so as not to affect the effectiveness of the drug.