LOS ANGELES -- California Attorney General Jerry Brown, accompanied by Danville father Bob Pack, will announce a plan Wednesday to enable doctors and pharmacies to check patients' drug history through an Internet program.

The purpose of the program is to prevent drug addicts from collecting multiple narcotics prescriptions from many different doctors. The announcement will be made in Los Angeles.

Pack and his wife, Carmen, established the Troy and Alana Pack Foundation to promote traffic safety after their two children were killed in 2003 by a driver allegedly under the influence of prescription drugs obtained from several doctors.

The state already has a database, known as the Controlled Substance Utilization Review and Evaluation System, containing 86 million records of prescription drugs dispensed in California.

Until now, however, the attorney general's office has made the information available to doctors, pharmacies and law enforcement agencies via telephone or fax.

The new program will make the information immediately available to authorized entities via a secure online database.

Brown said, "Every year, thousands of doctors try to check their patients' prescription drug use history but the state's database is difficult to access.

"If California puts this information online, with real-time access, it will give doctors and pharmacies the technology they need to fight prescription drug abuse, which is burdening our healthcare system," the attorney general said.

Troy and Alana Pack, aged 10 and 7, died when professional nanny Jimena Barreto struck them with her Mercedes Benz as they rode on their scooter and bicycle on a Danville sidewalk, with their mother walking beside them, on a trip to get ice cream on Oct. 26, 2003.

The Packs now have another daughter, Noelle, who turned 2 last week.

Barreto was convicted in Contra Costa County Superior Court in 2005 of two counts of second-degree murder; driving under the influence of alcohol, prescription drugs or both; leaving the scene of an accident; and driving with a suspended license. She is serving a 30-year prison sentence.

Prosecutors alleged Barreto was under the influence of both alcohol and drugs, while her attorneys acknowledged she had drug prescriptions but denied she was intoxicated on alcohol.

An article on the Pack foundation's Web site says Barreto had six prescriptions for the painkiller Vicodin from six different doctors.

Brown said the primary prescription drugs of abuse in California are Vicodin, OxyContin, Xanax, codeine and Valium.