No easy answer: Even in the modern immediate-release forms, morphine is poorly absorbed in many people, broken down by stomach acid/enzymes and taken out in "first pass" through the liver. Conventional wisdom is 5 mg of hydrocodone is equivalent to 7.5 mg of morphine orally, and 2.5 mg of morphine if given by injection. There is a lot of individual variation, and equivalency tables are often wrong and dangerous.
Answered 3/8/2019
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A doctor has provided 1 answer
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4 doctors weighed in across 2 answers
A doctor has provided 1 answer
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