Naltrexone: An Opioid Blocker That Gets Around
Naltrexone (brand names include Vivitrol and ReVia) blocks opioid receptors just like Narcan (naloxone), which is used to treat opioid overdoses. Both drugs prevent any opioids in the vicinity From being able to latch onto opioid receptors and do their opioid thing. While Narcan and fast- and short-acting, naltrexone works more slowly and is longer-acting. It’s available …