The Overdose-Reversing Drug Naloxone Naloxone is an opioid antagonist that is used to temporarily reverse the effects of an opioid overdose, namely slowed or stopped breathing. Expanding the awareness and availability of this medication is a key part of the public health response to the opioid epidemic.
Naloxone is a safe antidote to a suspected overdose and, when given in time, can save a life. Therefore, increasing the availability and targeted distribution of naloxone is a critical component in the efforts to reduce opioid-related overdose deaths and.
Naloxone, when combined with the availability of effective treatment, to ending the opioid epidemic. 
Anyone can get Naloxone from a pharmacy for themselves or to help a person who is expeciencing opioid overdose with or without a prescription . Missouri has a standing order for that and it can be found here.To get Naloxone from pharmacy without prescription:
The pharmacy may be able to bill your insurance, even without a prescription.