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Susan Cyr of Raynham, Suzanne Howard of Sharon, and Louise Griffin of Lowell, know the pain of losing a son who battled heroin addiction.
The scourge has claimed at least 185 people in Massachusetts in the past four months.
These mothers want addiction treatment to be easier to access and the stigma attached to substance abusers erased. They also talked about cracking down on drug dealers, helping the public understand that addiction is a disease, and stopping the flood of painkillers manufactured by the pharmaceutical industry and prescribed by doctors.