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Related Experiment Videos

Further development of a morphine hydrogel suppository.

L Cole1, C D Hanning, S Robertson

  • 1University Department of Anaesthesia, Leicester General Hospital.

British Journal of Clinical Pharmacology
|December 1, 1990
PubMed
Summary

A novel sustained-release morphine hydrogel suppository (MHS) effectively delivered morphine over 12 hours. Plasma concentrations were comparable to oral doses, suggesting MHS is valuable for chronic pain management.

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Area of Science:

  • Pharmacology
  • Drug Delivery Systems
  • Pain Management

Background:

  • Effective pain management, particularly for chronic conditions, requires reliable and sustained drug delivery.
  • Oral morphine administration can have variable absorption and side effects.
  • Novel delivery systems are needed to improve morphine's therapeutic index.

Purpose of the Study:

  • To develop and evaluate a sustained-release monolithic morphine hydrogel suppository (MHS).
  • To assess the pharmacokinetic profile of morphine delivered via MHS in human volunteers.
  • To compare the efficacy of MHS with oral morphine administration.

Main Methods:

  • Development of a sustained-release monolithic morphine hydrogel suppository (MHS).
  • Administration of MHS to five healthy volunteers.

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  • Measurement of plasma morphine concentrations over a 12-hour period.
  • Pharmacokinetic analysis and comparison with historical oral morphine data.

    • Main Results:

    • The MHS successfully delivered a mean of 55 mg morphine over 12 hours.
    • Mean plasma morphine concentrations of 15 ng/mL were maintained from 2 to 12 hours post-administration.
    • Achieved plasma morphine levels were comparable to those from equivalent oral doses.

    Conclusions:

    • The morphine hydrogel suppository (MHS) demonstrates effective sustained release of morphine.
    • MHS offers a viable alternative for morphine delivery, potentially improving chronic pain management.
    • This novel delivery system warrants further investigation for clinical application in pain therapy.