A study of nasally administered opioid antagonist, naloxone, has shown promising results.
Naloxone is a powerful opioid antagonist that can reverse overdose from heroin and other opioids. Naloxone nasal sprays have been developed as an alternative to injectable naloxone devices. However, there are only limited pharmacokinetic data on the bioavailability of nasally administered naloxone.
Read more: http://bit.ly/2E6cujd