• mcm1966 mcm1966
    November 19, 2009
    how long does demerol stay in your system
    mcm1966 mcm1966
    November 19, 2009

    it just seems not to last when in pain

    READ MORE

FROM OUR EXPERTS

  • Karen Lee Richards
    Health Guide
    November 20, 2009
    Karen Lee Richards
    Health Guide
    November 20, 2009

    Demerol has a half-life of 2.5 - 4 hours.  That means 2.5 to 4 hours after you take it, the concentration of Demerol in your blood plasma is half of the dosage taken.  Some of the medication will remain in your system for 5 to 6 times the half-life, or between 12.5 and 24 hours.  I'm not sure exactly when Demerol reaches it's peak of concentration, but my guess would be between half an hour to an hour after taking it orally.  After that, the concentration gradually begins to decline. 


FROM OUR COMMUNITY

You should know Answers to your question are meant to provide general health information but should not replace medical advice you receive from a doctor. No answers should be viewed as a diagnosis or recommended treatment for a condition. Content posted by community members does not necessarily reflect the views of Remedy Health Media, which also reserves the right to remove material deemed inappropriate.