SAN FRANCISCO (KRON) — They’re prescribed to treat pain, but addiction to opioids causes a different kind of suffering, not just for the drug’s users, but for their loved ones, and for communities as well.

Over the coming months, KRON4 is putting The Focus on Fentanyl. It’s a drug that claims tens of thousands of American lives each year. Watch the video above as KRON4’s Sara Stinson breaks down some of the numbers here in the Bay Area.