How many hours does the blocker work in suboxone?

Suboxone contains two medications: buprenorphine, a partial opioid agonist, and naloxone, an opioid antagonist. Buprenorphine works by activating the opioid receptors in the brain, producing analgesia (pain relief) and euphoria. Naloxone is used to prevent people from abusing Suboxone by injecting it. When injected, naloxone blocks the effects of buprenorphine, causing withdrawal symptoms.

The blocking effects of naloxone in Suboxone typically begin within a few minutes of injection and can last for several hours. The exact duration of the block depends on the dose of Suboxone that was injected and the individual's metabolism.

It is important to note that the blocking effects of naloxone in Suboxone can only prevent the effects of buprenorphine. It does not block the effects of other opioids, such as heroin or morphine. Therefore, people who inject Suboxone in order to get high are still at risk of overdose and death.