Effects - Quick question on codeine and grapefruit juice.

[heroin_ed]

SWIM has acquired a bottle of generic for phenergan w/ codeine.

He also has acquired 30 lortabs and has been using the grapefruit juice trick to get the most out of his tabs (which works wonderful btw, SWIM drank 8 oz. of grapefruit juice 30 minutes prior to taking a couple tums, 50 mg of diphenhydramine and half his usual dose of hydrocodone and felt WONDERFUL!).

He is aware that grapefruit juice does the opposite with codeine, it hinders conversion of codeine to morphine in the liver.

To get to the point of his question, how long should he wait after he has consumed grapefruit juice to take codeine so that the juice is out of his system and doesn't interfere with his liver converting said codeine to morphine?

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Thanks for sharing.