In 1966, John Money became the first American to employ chemical castration by prescribing medroxyprogesterone acetate (MPA, the base ingredient now used in DMPA) as a treatment for a patient dealing with pedophilic urges. The drug has thereafter become a mainstay of chemical castration in America. Despite its long history and established use, the drug has never been approved by the FDA for use as a treatment for sexual offenders.
California was the first U.S. state to specify the use of chemical castration as a punishment for child molestation, following the passage of a modification to Section 645 of the California penal code in 1996. This law stipulates that anyone convicted of child molestation with a minor under 13 years of age may be treated with DMPA if they are on parole after their second offense and that offenders may not reject the treatment.
The passage of this law led to similar laws in other states such as Florida’s Statute Section 794.0235 which was passed into law in 1997. As in California, treatment is mandatory after a second offense.
At least seven other states, including Georgia, Iowa, Louisiana, Montana, Oregon, Texas and Wisconsin, have experimented with chemical castration. In Iowa, as in California and Florida, offenders may be sentenced to chemical castration in all cases involving serious sex offenses. On June 25, 2008, following the Supreme Court ruling in Kennedy v. Louisiana that the execution of child rapists where the victim was not killed was ruled unconstitutional, Louisiana Governor Bobby Jindal signed Senate Bill 144, allowing Louisiana judges to sentence convicted rapists to chemical castration.