tyrael
Bluelighter
Is it true that taking promethazine before using opiates will shorten/weaken the high due to something with liver enzymes? But taking it after dosing the opiates is fine?
Put simply yes. It has been spoken about many times in previous threads (checkout v1.0). Basic theory is the enzyme (CYP2D6) is used to metabolise both promethazine and codeine, so it is thought that the enzymes are busy metabolising the promethazine, leaving more of the codeine around.
Additionally, being a first-generation anti-histamine it can also have a sedating affect which can help potentiate the codeine high. And since it is an anti-histamine, it also helps with the itch which I love.
It's often used medicinally in OTC products.
Done and CWE once (~200mg of codeine - average for me) but with no promethazine, the next morning I had crazy bruises/scratch marks on my legs!! =/
I really can't give a simply answer can I? Le sigh. Click here to be hand-held


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