Bunorfin, that is short for Buprenorphine, is essentially used to treat patients who are suffering from an opioid addiction. Such a type of addiction is of substances that come under the classification of narcotic drugs. These can be heroine or narcotic pain killers. The primary use of this drug is to retrain severe chronic pain. Another of its basic use is that it is used as a skin patch that is, a transdermal. Bunorfin does this by acting as an opioid partial agonist-antagonist. This leads to the drug producing effects that are similar to the narcotic drugs the patient is addicted to, but those that are not harmful or addictive. Hence, this drug prevents all any withdrawal symptoms that an addict patient might suffer from after getting off the narcotic drugs. However, make sure to not use this drug post-surgery or for the treatment of any short term occasional pain as then it would not be as effective as it could have been if it was used on a recent opioid drug addict.