Naloxone was created in the 1950’s as an opiod-blocking medication. It can rapidly reverse the sedation and respiratory depression of known or suspected opiod overdose. Recently, Naloxone has been made available without prescription (clarify) to enable users and their families to keep this antidote available. In the 19__’s _____________ discovered that at low dose, a related molecule, naltrexone, can calm down the immune system when it… (more to come).