For example morphine is an opiate but methadone ( a completely synthetic drug ) is not .
Opiate is a specific term that is used to describe drugs ( natural and semi-synthetic ) derived from the juice of the opium poppy .
Morphine is an opiate but methadone ( a completely synthetic drug ) is not .
Opiate is a specific term that is used to describe drugs ( natural and semi-synthetic ) derived from the juice of the opium poppy .