The term "addictive" is ambiguous. Alcohol is addictive to some, but most people use it in moderation. Similarly, opioids may be addictive to some but not to others.

Context seems to matter as to whether you are addicted or not. For example, many U.S. troops in the Vietnam War were addicted to heroin, but when they returned home most were no longer addicted. 

The same is true of hospital patients on painkillers. They are dependent while in hospital, but not when released.