A novel estrogen product for postmenopausal women called Estring (EST-ring)

    Pharmacia-Upjohn is marketing a novel estrogen product for postmenopausal women called Estring (EST-ring).

    It's a flexible vaginal ring that slowly releases estradiol. It's inserted like a diaphragm...then replaced after 3 months.

    Estring relieves vaginal and urinary discomfort.

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