Family members can be active participants in responding to the overdose epidemic by rescuing loved ones with the opioid overdose antidote naloxone, a new study finds.

Boston University researchers studied almost 41,000 people who underwent naloxone training, and found family members used the antidote in about 20 percent of 4,373 rescue attempts. Almost all the attempts were successful, HealthDay reports.

“Families are willing participants in this fight against overdose deaths, and more should be done to involve them as allies,” lead researcher Sarah Bagley said.

The study appears in Drug and Alcohol Review.