Estring should be stored at room temperature, away from moisture and heat. Keep this and all other medications out of the reach of children.
What If I Miss a Dose?
If you forget to remove and replace your Estring after 90 days, you may begin to experience increased menopause symptoms, as the ring will begin to release less estrogen after 90 days. Simply remove the old ring and replace it with a new one as soon as you remember.
Estring comes in one strength, designed to release 7.5 mcg (0.0075 mg) every 24 hours for 90 days.
At this time, no generic versions of Estring are licensed for sale (see Generic Estring for more information).
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Last reviewed by: KristiMonson, PharmD;
List of references (click here):
Estring [package insert]. New York, NY: Pfizer, Inc.;2007 December.
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: Approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed April 28, 2008.
Briggs GG, Freeman RK, Yaffe SJ. Drugs in Pregnancy and Lactation. 7th ed. Philadelphia (PA): Lippincott Williams & Wilkins;2005.
National Library of Medicine (US). Drugs and Lactation Database (LactMED). NLM Web site. Available at: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT. Accessed April 28, 2008.
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