<prompt> Opium is derived from -LeafRootPoppy seedUnripe capsule  <response>: Opium afim is the dried extract of the poppy plant Papaver somniferum. The unripe opium capsules are incised to obtain the extract, which is milky fluid Active principles Opium contains alkaloids, which are divided into two groups: 1. Phenanthrene group: have narcotic propeies Morphine Codeine Thebaine non-analgesic. 2. Benzoisoquinoline group: have mild analgesic but no narcotic propeies Papaverine Noscapine narcotine REF;THE SYNOPSIS OF FORENSIC MEDICINE:KS NARAYANA REDDY;28th EDITION;PAGE NO 334 