No. Suboxone does not have naltrexone in it. Suboxone is the
trade name for the mixture of buprenorphine and naloxone in a 4 to
1 ratio. Buprenorphine is a partial agonist at the opioid receptor.
Naloxone is an antagonist or "blocker" of the same receptor.
Naltrexone is an opioid receptor antagonist used primarily in the
management of alcohol dependence and opioid dependence.