How long does Suboxone last?

According to Drugs.com, the half-life of buprenorphine is 24 to 42 hours, whereas the half-life of naloxone is two to 12 hours. Suboxone is a sublingual film or tablet composed of buprenorphine and naloxone and used for opiate, or narcotic, addiction.

Suboxone should not be chewed or swallowed; place it under the tongue and allow it to melt. The dose of suboxone is usually given as an induction dose of 8 milligrams/2 milligrams on day one over several intervals, then increased to 16 milligrams/4 milligrams on day two in one single dose, and progressively adjusted from day three onward, notes Drugs.com. Suboxone can cause respiratory depression and central nervous system depression.