Can you smoke heroin on Suboxone?

As long as you have no opiates (heroin, morphine, hydrocodone, oxycodone, etc.) in your system at the time (at LEAST 48 hours without heroin), you can get high from snorting buprenorphine/naloxone. It may not work due to the naloxone, but I have seen it done successfully. Since you used to use heroin, it may not be very fufilling since it is not a full opiate agonist like heroin and morphine.

Subutex does not have naloxone in it and can be pretty immediate after last drug of choice.