Natural painkiller found in human saliva

A new painkilling substance found in human saliva has been discovered that is up to six times more potent than morphine it's produced naturally by the human body. Natural painkillers are very rare, and researchers hope that this recent find might be harnessed as a clinical treatment.
Natural painkiller found in human saliva
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Naturally produced painkillers might help to avoid some of the side effects experienced by patients treated with synthetic compounds such as morphine, including addiction and tolerance with prolonged use. But the new substance will first have to be tested to confirm whether it will be an effective drug, experts warn.

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