NARCAN-Naloxone
Narcan reverses an opioid overdose. It is an opioid antagonist. It is commonly found as a nasal spray. It is legal to posses and recognized as a lifesaving procedure. It works by knocking opioids off the brain stem and then binding to the receptors to restore breathing. If Narcan catches, it will also put the body into immediate withdrawal. The user will experience withdrawal symptoms and can be upset with the person who has put them in that state, so beware they may swing at you. If someone is unresponsive or being given Narcan, you need to immediately call 911 to get medical help on its way.
Fentanyl and its analogues, because of the potency, may require multiple pops to catch and wake the person up. After 3 or 4 pops, if the person isn’t responding start CPR, but no recovery breaths, just chest compressions and hope paramedics get there quickly.
Here are 2 sites that will send you Narcan free of charge, they also will send you fentanyl test strips if you request them. You need to watch a short video and answer a couple questions, so they know you know how to administer it.