How long Estring takes to work
After you start using ESTRING® (estradiol vaginal ring), be patient. It may take about 2 to 3 weeks to restore the tissue of the vagina and urinary tract to a healthier condition. It can also take that long to feel the full effect of ESTRING in relieving your symptoms. If your symptoms persist for more than a few weeks after beginning ESTRING therapy, contact your doctor or healthcare provider.
After 90 days, there won’t be enough estradiol in the ring to maintain its full effect in relieving your vaginal or urinary symptoms. ESTRING should be removed at that time and replaced with a new ESTRING, if your doctor determines that you need to continue your therapy.
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