Historical perspective| Volume 3, ISSUE 2, P183-186, August 1981

Serum concentrations of oestrone, oestradiol and oestriol during various oestrogen treatments

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      Serum oestradiol/oestrone ratios were measured during various oestrogen treatments in castrated women. Oral oestriol succinate therapy (8 mg/day) caused little change in the pre-treatment oestradiol/oestrone ratio. During oestradiol valerianate therapy (2 mg/day) serum total oestrogens and the E2/E1 ratio were considerably increased. One day after the injection of 10 mg of oestradiol valerianate and 2.5 mg of oestradiol benzoate + 10 mg of oestradiol phenylpropionate the E2/E1 ratio was similar to the ratio in the middle of the normal ovulatory cycle. The change in serum oestriol was rather small after oral doses of 8 mg of oestriol succinate 15, 30 and 120 min after the application.


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