SURREY, B.C. - Fraser Health has launched a poster ad campaign bolstering its ongoing drive to raise awareness of what it says is the overdose crisis in British Columbia.

The posters will be displayed at transit stops, bars and restaurants, and are aimed at recreational and regular drug users, their families and friends.

One message on the stark, black and white posters says: "If you use drugs: Have a plan. Go slowly. Use with a buddy. Carry naloxone."

The posters also offer instructions for anyone finding an overdose victim, directing them to call 911, start emergency breathing and use naloxone, which can reverse the effects of an opioid overdose.

Fraser Health says in a news release that it is confident about the effectiveness of the campaign because the posters were tested in focus groups of regular and recreational drug users.

In April, B.C.'s provincial health officer declared a public health emergency linked to the soaring number of opioid overdoses, and the declaration remains in effect.