What it is: A market failure occurs when the supply of a good or service is insufficient to meet demand. This results in an inefficient distribution of resources among market participants. Under free market conditions, prices are determined almost exclusively by the forces of supply and demand.
NuvaRing is currently under the protection of a patent that prevents any generic NuvaRing from being manufactured in the United States. The first patent for NuvaRing currently expires in April 2018.This is the earliest possible date that a generic version of NuvaRing could become available. However, there are other circumstances that could come up to extend the exclusivity period of NuvaRing beyond 2018.This could include such things as other patents for specific NuvaRing uses or lawsuits.uvaRing is currently under the protection of a patent that prevents any generic NuvaRing from being manufactured in the United States. The first patent for NuvaRing currently expires in April 2018.
Nuvaring. ETHINYL ESTRADIOL; ETONOGESTREL vaginal ring is a flexible, vaginal ring used as a contraceptive (birth control method). This medicine combines two types of female hormones, an estrogen and a progestin. This ring is used to prevent ovulation and pregnancy.Each ring is effective for one month.uvaRing Â® is used in a 4 week cycle. You must insert it in the vagina on the appropriate day and keep it in place for 3 weeks. Then, remove the vaginal ring 3 weeks later on the same day of the week it was inserted and at about the same time. During the 1-week break, you will usually have your menstrual period.