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Ziprepol is NOT an opioid. It has been used in conjunction with opioids but in itself is not an opioid. I cannot understand why it is in the Wikipedia forum as an opioid. It has been banned in some countries because it does cause a flash when injected, but that does not automatically give it opioid effects. It will not help with withdrawal... —Preceding unsigned comment added by 81.134.77.24 (talk) 14:50, 1 July 2009 (UTC)Reply