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Maturitas. 1983 Aug;5(2):125-33.

Dose-response and withdrawal effects on climacteric symptoms after hormonal replacement therapy. A placebo-controlled therapeutic trial.


Out of a sample of 162 early post-menopausal women, aged 45-54 yr, 131 completed a placebo-controlled study to investigate the effect of sex hormones on mild climacteric symptoms with special reference to the dose-response relationship and withdrawal effects. The women were followed up for 42 mth under four different study programmes. All the women were examined every 3 mth and a blind assessment made of the menopausal index estimated according to Kupperman et al. The data revealed a highly significant reduction in climacteric symptoms in the hormone-treated women as compared with the placebo group (P less than 0.001), a highly significant dose relationship between climacteric symptoms and treatment with 4, 2 and 1 mg oestradiol, respectively (P less than 0.001), a highly significant and dose-dependent rebound phenomenon after withdrawal of hormone treatment (P less than 0.001)--which levelled off after 6 mth following withdrawal--and complete relief of hot flushes with the two highest doses of oestradiol (4 and 2 mg oestradiol). It is concluded that sex hormones have a beneficial effect in post-menopausal women with even mild symptoms.

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