Estrogens like<unk> have a number of contraindications.<unk> should be avoided when there is undiagnosed abnormal vaginal bleeding, known, suspected or a history of breast cancer, current treatment for metastatic disease, known or suspected estrogen-dependent neoplasia, deep vein thrombosis, pulmonary embolism or history of these conditions, active or recent arterial thromboembolic disease such as stroke, myocardial infarction, liver dysfunction or disease.<unk> should not be taken by people with a hypersensitivity/allergy or those who are pregnant or are suspected pregnant.
Estradiol 
Estrogen
Estrogen 
Alfatradiol
Androgen
17α-Estradiol
Progesterone 
Progesterone