DALKON SHIELD
An intrauterine contraceptive device used for about 13 years (1971–1984) worldwide; about three years (1971–1974) in the United States.
By the time the product was withdrawn from the market, A.H. Robins had distributed approximately 2.8 million Dalkon Shields in the U.S. and 1.7 million overseas. Approximately 3.6 million women worldwide actually used the Dalkon Shield. An estimated 15,000 cases were filed against A.H. Robins for reproductive and other personal injuries by the time the company filed for Chapter 11 bankruptcy protection.
The judge approved a mandatory class settlement against Aetna, Robins’s insurer, and that settlement was approved by the court of appeals. The Dalkon Shield Claimants Trust was established with the $2.475 billion proceeds of the sale of the company, and more than 300,000 individuals filed claims
There seems to be a consensus that the Dalkon Shield was not adequately tested.