New Opioids Could Relieve Pain Without Dangerous Side Effects, UCSF Study

Once hailed as saviors of pain patients everywhere, opioids — including oxycodone and fentanyl — have caused an addiction epidemic in the United States and earned the scorn of doctors, patients and lawmakers. Some scientists think it's time to give opioids a second chance, by developing a new generation of drugs with all the painkilling power of conventional opioids but without some of the dangerous side effects.

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