Neurana’s non-opioid back pain drug passes midstage human testing September 24, 2019 sandiegobiotech News Comments Off on Neurana’s non-opioid back pain drug passes midstage human testing Neurana's non-opioid back pain drug passes midstage human testing Play Episode Pause Episode Mute/Unmute Episode Rewind 10 Seconds 1x Fast Forward 30 seconds 00:00 / Subscribe Share RSS Feed Share Link Embed Called tolperisone, the drug showed effectiveness for back spasms with drowsiness comparable to placebo