Many people who take opioids on a daily basis have built up some tolerance to opioids, but not always. Most people who are exposed to fentanyl haven’t been exposed to opioids, so a small amount of fentanyl exposure can be deadly. It is being sold on social media platforms such as Snapchat, Facebook, and Instagram. If a pill isn’t purchased from a pharmacy, it isn’t safe for you to take! Do not believe anyone who says the drugs they sell are safe because they test them. They would need to crush every one of the pills they sell to see if it contains fentanyl. Some pills in a batch can have enough fentanyl to kill you, and others can have just enough to get you addicted. It can be very difficult to distinguish genuine pills from fake or counterfeit versions. Fentanyl is killing long-time drug users, as well as those trying drugs for the first time.