J Postgrad Med
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Severe malaria is invariably caused by Plasmodium falciparum. In India, both adults and children are affected by severe malaria. However, children are more prone for developing anemia and convulsions as manifestations of severe malaria, while acute renal failure and jaundice are more common among adults. ⋯ Parenteral quinine is the mainstay of therapy. A recent multi-centric study has demonstrated the efficacy of intravenous artesunate in reducing the mortality by 30%. The usefulness of adjunct therapy is still controversial.
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Genotypes of the drug-metabolizing enzyme CYP2D6 influence plasma levels of 25% of commonly prescribed drugs. This is the first study in India to investigate the genotype-phenotype relationship of CYP2D6. ⋯ The CYP2D6 enzyme activity was found to be decreased in individuals carrying *4 or *5 alleles. The *1 or *2 allele could compensate for the reduced function due to *10 allele, but not for the loss of function due to *4 allele.