Can Over-the-Counter Narcan Put an End to Opioid Deaths?

In the past 13 months Antonio Sanchez has watched three of his friends overdose from opioids. The first two times, Sanchez, 22, was able to revive them with Narcan, the life-saving drug that reverses the effects of opioid overdose, that his girlfriend had given him when she returned from rehab.

Then last month a third friend overdosed. Sanchez, who lives in Texas, quickly realized he had used up all his Narcan...