jiangyun submitted, created time 1 year 1 month (sciencenow.sciencemag.org)

Opioid drugs such as morphine are the most powerful painkillers. Unfortunately, in some patients their narcotic effects lead to addiction and the need for ever-escalating doses to quell pain. New research with rats shows that blocking morphine's action on glia--a type of support cell in the nervous system--can reduce these downsides while heightening its potency against pain.

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