what drug group does cannabis belong to
Morphine and it's derivative heroine are classed as opiates. Cannabis belongs to the group cannabinoids which also includes marijuana and hashish.here is no credible evidence that marijuana leads to the use of other drugs, and some anecdotal evidence that it can help people with addiction problems. The only connection â¦ marijuana has with 'hard' drugs is that they are both illegal, and so a certain percentage of dealers will sell both.