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Which one of the following drugs is obtained from the capsule of Papaver somniferum?

  • A.Papain
  • B.Codeine
  • C.Digoxin
  • D.Bromelain

Answer: B

The drug is Codeine.

The unripe capsule of the opium poppy, Papaver somniferum, is scored to release a latex that dries into opium. Opium contains morphine, codeine, thebaine and papaverine among its alkaloids, and codeine is used as a cough suppressant and mild analgesic.

Papain is a protease from papaya latex, digoxin is a cardiac glycoside from foxglove (Digitalis), and bromelain is a protease from pineapple; none comes from the poppy.

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