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More than 90% of the US population has at least one genetic variation that may affect their response to medication. [1] 75%+ of Americans have variations that can be tested for.
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More than 4.5 billion prescriptions are given out to patients each year. Currently, more than 250 drugs have pharmacogenetic information/FDA warnings on their labels. [3]
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Every year 2.2 million severe adverse drug events (ADEs) are reported in the US. This leads to 1.3 million emergency room visits and an excess medical cost of $3.5 billion. [2]