Yes, heroin is an opiate and is physically addictive.
Steroids. That's it. Just like the "addictive substance" in heroin is heroin, the addictive substance in steroids is the steroids themselves.
Heroin
Ecstasy and heroin are both very dangerous and addictive drugs. Do not use them.
Yes
very addictive
No. Heroin is extremely addictive. There is no such thing as using heroin responsibly.
that it is highly addictive.
Heroin
Heroin will almost certainly hurt you if you use it; it is addictive, it is a powerful narcotic, and many people have died of heroin overdoses.
cocaine, crack, heroin ,ecstasy, alcohol. There are others, but these are def. at the top for addictive drugs
They don't. It is not physically addictive like heroin.
Because it is a highly addictive opiate based illegal drug. Let me emphasize HIGHLY ADDICTIVE.