Using a swab inside the cheek and a sophisticated computer algorithm, a DNA test recently approved by federal regulators promises to assess genetic risk of opioid addiction. The test’s maker says ...

The drug can cause hours-long blackouts and necrosis of the skin, which can lead to amputation, and its effects can't be ...

A test that uses a cheek swab to assess whether people have an elevated risk of becoming addicted to opioid medications received approval from the U.S. Food and Drug Administration earlier this week.

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Using a swab inside the cheek and a sophisticated computer algorithm, a DNA test recently approved by federal regulators promisesto assess genetic risk of opioid addiction. The test’s maker says ...