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Pharmacy DNA test for antidepressants questioned

A psychiatrist has questioned the value of a DNA test sold in pharmacies that could help doctors prescribe “the most suitable medication at the right dosage”.  

The myDNA kit, which is being sold for $149 by the Chemmart pharmacy chain, identifies common variations in four genes that are involved in processing a number of drugs.

This includes the gene CYP2C19, which affects the

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