A growing number of schools across the country are stocking the opioid overdose antidote naloxone in response to the heroin epidemic, The New York Times reports.

Schools in Massachusetts, Kentucky, Connecticut and New Mexico have naloxone for emergency use. New York State provides naloxone for free to schools, and almost 250 schools in Pennsylvania have received a free supply. In Rhode Island, all middle schools and high schools must have naloxone on the premises.

Any high school in the country can receive two free doses of Narcan (a brand name for the nasal spray version of naloxone), through a partnership between the drug’s producer, Adapt Pharma, and the Clinton Foundation.