Kym Porter has been carrying a naloxone kit in her purse since her son died of an overdose more than six years ago.

Porter, a retired school teacher in Medicine Hat, Alta., was trained to use both the syringe and nasal versions of the overdose reversal drug, but never ran into an emergency situation until May.

鈥淚 saw this fellow lying under a tree and he wasn鈥檛 moving,鈥� Porter said.

She approached the man, looked for any drug paraphernalia, called out to him and shook his shoulders. No response.

Porter dialed first responders and reached for her naloxone kit.

鈥淏ut for some reason, I don鈥檛 know why, I hesitated,鈥� she said. 鈥淚 didn鈥檛 administer it.鈥�

Emergency crews arrived and brought back the manwho confirmed to her that he had overdosed.

Naloxone kits are easily available, over-the-counter antidotes that block the effects of opioids such as fentanyl, heroin, morphine or cocaine.

More people are carrying naloxone kits with them on the streets as drug poisoning-related fatalities break records every passing year in Canada.

In Alberta, the latest numbers show April was the deadliest month, with 179 deaths from opioid overdoses.

Caitlin Shane, a drugs policy lawyer with Pivot Legal Society in Vancouver, said she sees people in the community, as well as health professionals on and off the job helping others who may have overdosed on opioids.

鈥淥ftentimes, it鈥檚 people who just happen to be walking by (and) have naloxone attached to their bag or backpack,鈥� she said.

Shane said it is crucial to know the signs of an overdose to ascertain when to administer naloxone.

鈥淭hat way, you can feel more comfortable doing it.鈥�

The signs could be shallow breathing, blue or grey lips or nails, small pupils, the inability to wake up despite calling out or shaking the person, and choking or snoring sounds.

鈥淚f you believe someone is overdosing and you鈥檙e not sure if it鈥檚 an opioid or stimulant overdose, Health Canada recommends administration (of naloxone),鈥� she said.

鈥淭he outcome will most likely be better than not administering it.鈥�

The U.S. Food and Drug Administration says injecting naloxone into a person who may be unconscious for other reasons such as diabetic coma or cardiac arrest would not cause them additional harm.

Shane said the Emergency Medical Aid Act protects people who administer naloxone outside of a health or medical setting, or when the person is not being compensated for their help.

鈥淚f you鈥檙e walking down the sidewalk and you see someone has overdosed and you administer naloxone, and in doing that, you injure the person or cause their death, you will not be legally liable,鈥� she explained.

The only exception is if the injury or death is caused by 鈥済ross negligence,鈥� Shane added.

Candice Chaffey, a nurse at a Toronto-area hospital, was on her way to pick up a takeout pizza when her eyes caught a man lying unconscious on the pavement.

The man was surrounded by bystanders in Brampton, Ont., as they waited for paramedics to arrive.

Chaffey approached the man and began with sternal rubs on the chest to wake him up. She knew it was an overdose.

鈥淚 ran home and got back with my naloxone kit within 30 seconds,鈥� Chaffey recalled of the evening last summer.

She opened the kit, pulled out the ampoule, pulled it through the syringe and injected naloxone into the man.

鈥淗e immediately started to get up and said, 鈥榃hy did you poke me?鈥欌�� she recalled.

The man passed out again so Chaffey repeated the steps with a second dose and helped him get up. But the man wasn鈥檛 happy with the intrusion.

Chaffey said things could get violent. It didn鈥檛 in this case.

鈥淭hat is a risk you take,鈥� she said.

She warned that people shouldn鈥檛 put themselves at risk if they are not comfortable approaching a person who is potentially overdosing.

鈥淭he best thing to do is just wait for a paramedic to arrive,鈥� Chaffey said.

For Porter, the hesitation wasn鈥檛 coming from safety or legal concerns. Instead, she felt she was 鈥渙verdramatizing鈥� the situation when she came across an unconscious man.

鈥淚 questioned myself,鈥� Porter said. 鈥淎m I just wanting to do this because I know how to do this? Am I making too big of a deal about this?鈥�

Looking back at the day, Porter said she wouldn鈥檛 hesitate to administer naloxone if it happens again.

She recalled her 31-year-old son鈥檚 last interaction with a neighbour before he died of drug poisoning.

鈥淭he woman upstairs came down. (My son鈥檚) door was open. She saw him lying on the floor, snoring and didn鈥檛 realize he was dying,鈥� she said.

鈥淪he kindly covered him with a blanket, thinking he was asleep.鈥�

Porter said if the neighbour knew the signs, her son could have lived.

鈥淚鈥檓 not an expert, I鈥檓 not a nurse, I鈥檓 not wise enough to know how sick a person is,鈥� she said.

鈥淏ut naloxone is a life-saving tool.鈥�

Ritika Dubey, The Canadian Press