Eusebio is a short-acting oral contraceptive that can be taken up to age 40 if there are no uncomfortable symptoms after taking Eusebio and no organic changes occur on examination. The most common side effects are breast tenderness and nausea. The most serious adverse effect is arterial thrombosis, but it usually occurs less frequently. It is not recommended for women after the age of 40 as it may increase the risk of cardiovascular disease and arterial thrombosis. The specific dosage of Ustekin is recommended to be taken under the guidance of a gynecologist to avoid endocrine disorders. Patients need to have regular medical check-ups while taking the drug and should stop it immediately when discomfort occurs.