DEERFIELD, Ill. — Walgreens has begun providing the opioid overdose antidote naloxone without a prescription at all of its pharmacies in Arizona.

The drug chain said Tuesday that naloxone, administered by injection or nasal spray, is more accessible through its more than 240 pharmacies across Arizona, in accordance with state regulations.

“By making naloxone available without a prescription, we are making it easier for Arizona families and caregivers to help their loved ones by having it on hand in case it’s needed,” Brian Sizemore, regional health care director in Arizona for Walgreens, said in a statement. “As a pharmacy, we are here to help people, and we are committed to making naloxone more accessible in the communities we serve.”

As part of its national plan to combat drug abuse, Walgreens in February said it aimed to make naloxone available without a prescription in states and Washington D.C. where regulations permit. Since then, the pharmacy chain now provides no-prescription access to naloxone in more than 34 states and the District of Columbia.

States where Walgreens offers naloxone without a prescription include Arizona, Alabama, Colorado, the District of Columbia, Florida, Idaho, Illinois, Indiana, Louisiana, Maine, Maryland, Massachusetts, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Hampshire, New Jersey, New Mexico, New York (including Duane Reade), North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Dakota, Texas, Utah, Vermont, Virginia, Washington, West Virginia and Wisconsin.

“We need all hands on deck to stop the unrelenting wave of opioid drug and heroin overdose deaths throughout Arizona and the rest of the country,” Arizona Gov. Doug Ducey stated. “By signing HB 2355, it became possible for pharmacies like Walgreens to make naloxone available for loved ones and others who may be in a position to save the life of someone struggling with addiction.”

Last month, Walgreens said that in early 2017 it plans to begin offering naloxone without a prescription at stores in Arkansas, California, Connecticut, Iowa, Kentucky, Nevada and Tennessee.