“Synthetic heroin” is a street term that most commonly means Dilaudid or hydromorphone, a very potent prescription painkiller that can deliver a “rush” or feeling of euphoria similar to heroin. Hydromorphone is not completely synthetic or man-made, in that it contains plant materials.
There are three kinds of narcotic drugs: pure, partly man-made, and completely man-made or synthetic. Pure narcotics, such as codeine and morphine, are made from opium found in poppy plants. Others, such as hydrocodone, hydromorphone and heroin, have opium as their basic ingredient plus other man-made substances to enhance the effect. Finally, some narcotics are completely synthetic or man-made, such as fentanyl, methadone, and tramadol. These drugs do not have any opium in them.