School districts on Long Island and statewide are stocking naloxone onsite in school buildings to have the opioid antidote at the ready because of the growing issue of abuse of the deadly drugs, educators and health officials said. At least 340 schools across the state, including dozens on Long Island, have provided training for school nurses or other personnel about how to administer naloxone, according to the state Education Department. The Long Island Council on Alcoholism and Drug Dependence, based in Westbury, also has seen interest grow in instructing school personnel about the antidote, said Reisa Berg, director of education and prevention. [continues 1060 words]