Neuroscience

Codeine could increase users' sensitivity to pain

Using large and frequent doses of the pain-killer codeine may actually produce heightened sensitivity to pain, without the same level of relief offered by morphine, according to new research from the University of Adelaide.

Medications

FDA orders starker warnings on opioid painkillers

The Food and Drug Administration is requiring stronger warning labels on prescription painkillers like OxyContin, in the government's latest attempt to reduce overdose deaths caused by the long-acting medications.

Addiction

Jump in drug-dependent babies worries US hospitals

He's less than two weeks old, but he has the telltale signs of a baby in pain: a sore on his chin where he's rubbed the skin raw, along with a scratch on his cheek. He suffers from so many tremors that nurses watch him around ...

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