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 (the ring) is a combined-hormone method of birth control. It releases estrogen and progestin to protect against pregnancy for one month. A woman inserts the ring deep inside her vagina. A new ring is inserted only once and left in place for three weeks in a row. At the beginning of the fourth week, itâs removed and menstruation occurs. If you havenât been on the pill, patch, or ring in the last month, start using the ring on or before day five of your menstrual cycle. (Day one is the first day of bleeding.) Pregnancy protection will begin seven days later. In the meantime, use a latex or female condom to reduce the risk of pregnancy.