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Vaginal Rings, Drug Delivery

Definition : Vaginal rings are flexible copolymer rings that release or emit drugs during use and are intended to be used as intra-vaginal drug-delivery devices. Drug delivery vaginal rings that emit hormones to prevent pregnancy in women of child-bearing age, or to treat urogenital symptoms, are available. The muscles of the vagina keep the drug delivery vaginal ring securely in place until removed by the user. Drug delivery vaginal rings are used for continuous drug delivery for as long as the treatment is prescribed, after which they must be removed. If treatment should continue (as in birth control rings), the patient removes the expired ring and replaces it on a schedule.

Entry Terms : "Drug Delivery Vaginal Rings" , "Vaginal Rings, Contraceptive"

UMDC code : 25577


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Merck & Co Inc

Merck & Co., Inc. (NYSE: MRK), dba Merck Sharp & Dohme, MSD outside the United States and Canada, is one of the largest pharmaceutical companies in the world. Merck headquarters is located in Whitehouse Station, New Jersey. The company was established in 1891 as the United States subsidiary of the German company now known as Merck KGaA. Merck & Co. was confiscated by the US government during World War I and subsequently established as an independent American company. It is currently one of the world's seven largest pharmaceutical companies by market capitalization and revenue.

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