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About 20-30 minutes and the effects should last up to 8 hours. Be careful though because this drug is highly addictive. Make sure to take exactly how your doctor prescribes and only when you absolutely need to. However if you are just out of surgery or are suffering from an abundant amount of pain make sure not to miss your dose because once that kind of pain starts again it is hard to bring it back down to a tolerable level.

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14y ago

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