I don't really understand what you mean by that. They're completely different families of drugs used to treat different diseases, and have different side effect profiles. Opioids are typically used to treat pain, while Benzodiazepines treat anxiety disorders.
Addictive profiles was my meaning, Benzodiazepines (apparently using the abreviated form is offensive for some) making opiates look like a walk in the park when it comes to addiction.
Additionally there is a large boxy of work for prescribing Benzodiazepines to treat pain, as well as pairing the two for chronic pain, which seems to be an absolute recipie for disaster if used for anything but the shortest periods of time.
