Deleted the part stating that promethazine is a similar enzyme inducer

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This is not the case. Promethazine is not a CYP2D6 inducer(check it yourself, I have searched all the net for many years looking for such inducers) and it only potentiates opiates by its rather blunt sedating action. It's also a potent anticholinergic and it's irresponsible to write something like this, potentially leading people to try this combination which often will produce severe constipation and or impactions. -M99 87.59.77.53 (talk) —Preceding undated comment added 21:20, 10 April 2009 (UTC).Reply