arstechnica.com
The development of a fentanyl vaccine faces the challenge of potential overdose if drug dosage exceeds antibody capacity. While addiction specialist Sharon Levy believes this risk is low, a fentanyl vaccine is still a promising tool for teenagers or young adults accidentally exposed to fentanyl. Concerns exist about blocking other opioids, but studies show limited cross-reactivity, although it could mean that people could still overdose on other types of opioids—and get high from them. Despite its limitations, researchers believe a fentanyl vaccine is a valuable tool to combat overdose deaths.
