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Intraruminal devices.

Cardinal1

  • 1Oakmont Pharmaceuticals, Inc., 1967 Eastern Avenue, Verona, USA

Advanced Drug Delivery Reviews
|June 6, 2000
PubMed
Summary

Intraruminal boluses offer sustained drug delivery to ruminants, simplifying treatment during grazing seasons. This approach reduces farmer costs and improves animal health management through efficient, long-term medication.

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Area of Science:

  • Veterinary Medicine
  • Drug Delivery Systems
  • Animal Science

Background:

  • Ruminant animals, particularly those grazing, require effective long-term drug administration strategies.
  • The reticulo-rumen is an ideal site for sustained drug and nutrient delivery due to its role in fermentation.
  • Managing drug administration during grazing seasons is challenging due to the difficulty of retrieving animals.

Purpose of the Study:

  • To review various intraruminal bolus designs for long-term drug delivery in ruminants.
  • To discuss critical design features of these drug delivery devices.
  • To examine the relevant anatomy and physiology of ruminants for optimal bolus function.

Main Methods:

  • Literature review of existing intraruminal bolus technologies.
  • Analysis of anatomical and physiological factors influencing drug delivery in the reticulo-rumen.
  • Synthesis of information on design, efficacy, and future development needs.

Main Results:

  • Numerous intraruminal bolus types have been developed for sustained drug release.
  • Effective long-term delivery circumvents the need for frequent animal handling, reducing costs.
  • Design features significantly impact drug release profiles and efficacy.

Conclusions:

  • Intraruminal boluses are a valuable tool for efficient and cost-effective drug delivery in grazing ruminants.
  • Further development is needed to optimize existing systems and address specific therapeutic challenges.
  • Understanding ruminant physiology is crucial for designing advanced drug delivery solutions.

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