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Main slide. Khat leaves Names. Description and plant origin. Chemical constituents. Physiological effects. Khat. Oval and dentate leaf. Main slide. Main slide. Khat leaves : Abysinnian tea leaves. Catha edulis Family :Celastraceae. Main slide. Perennial evergreen shrubs

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  1. Main slide • Khat leaves • Names. • Description and plant origin. • Chemical constituents. • Physiological effects.

  2. Khat Oval and dentate leaf Main slide

  3. Main slide

  4. Khat leaves : Abysinnian tea leaves • Catha edulis • Family :Celastraceae Main slide

  5. Perennial evergreen shrubs • The leaves are oval and dentate . • Odorless • Taste : bitter. Plant origin: Yemen & Ethiopia Main slide

  6. Chemical constituents 1.The young fresh leaves contain Cathinone (Alkaloid- alkaloidal amine group). 2. The old leaves contain Norpseudoephedrine (80%) &norephedrine(20%). Main slide

  7. Physiological effects • Cathinone: 1- Have a similar effect to amphetamine. 2- CNS stimulant inhibitor. 3- Anorexic effect . • Norpseudoephedrine and norephedrine are decongestants Main slide

  8. N.B ! • This plant causes hallucination. • WHO (World Health Organization ): doesn't classify KHAT leaves as drug that produced habituation or addiction. Main slide

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