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What is Opium is derived from - and explain in detail?
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