Which of the following statements regarding drugs are correct?
(i) Heroin, commonly called smack, is obtained by acetylation of morphine.
(ii) Cocaine is obtained from the latex of Papaver somniferum.
(iii) Marijuana interferes with the transmission of dopamine.
(iv) Morphine is an effective sedative and pain killer.
Text Solution
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(i) Heroine, commonly called as smack, is a white colourless, bitter crystalline compound. This is obtained by acetylation of morphine which is extracted from the latex of the poppy plant, Papaver somniferum. (ii) Cocaine is obtained from the coca plant, Erthyroxylum
coca. Cocaine is commonly called as coke or crack which is usually snored. It has a potent stimulating action of cuphoria and increased energy. Its increased dosages cause hallucinations.
(iii) Marijuana interferes with the transmission of endogenous cannabinoids (anandamide).
(iv) Morphine is a very effective sedative and painkiller. It is very useful in the patients who undergone surgery.
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