Heroin More Addictive Than Marijuana Heroin and cocaine more addictive than Marijuana! Great bar graph. url: http://drugwarfacts.org/addictiv.htm Share this:Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)