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Related Concept Videos

Parenteral Drug Delivery Systems: Injectables, Implants, and Infusion Devices01:28

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Parenteral drug delivery systems play a crucial role in modern therapeutics by enabling the direct administration of drugs into the systemic circulation, bypassing the gastrointestinal tract. These systems are particularly valuable for poorly absorbed oral medications that are unstable in the digestive environment or require rapid onset or sustained therapeutic levels. Delivery is achieved through intravenous, intramuscular, or subcutaneous routes, each selected based on the drug's properties...
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The administration of drugs via parenteral routes allows for direct drug introduction into the systemic circulation, resulting in high bioavailability because the medication bypasses the harsh conditions of the gastrointestinal tract and hepatic metabolism.
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The parenteral route is a critical method of drug administration. It delivers compounds directly into the systemic circulation and bypasses the gastrointestinal tract. This approach is particularly advantageous for drugs that exhibit poor absorption or instability when administered orally.
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Intermittent intravenous (IV) infusion is a method of drug administration where medications are delivered over short infusion periods followed by intervals of no drug delivery. This approach helps to prevent sustained high drug concentrations in the bloodstream, reducing the risk of adverse effects associated with prolonged exposure. Unlike continuous infusion, steady-state concentrations may not be achieved during a single dosing cycle but can be reached through repeated...
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Insulin preparations are categorized by their duration of action into short-acting and long-acting types. Two strategies are used to modify insulin's absorption and pharmacokinetic profile: slowing the absorption post-subcutaneous injection, or altering human insulin's amino acid sequence or protein structure. These changes retain the insulin's ability to bind to the insulin receptor, but alter its behavior in solution or after injection.
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The development of extended-release formulations has facilitated the transition from intravenous to oral medication, offering a more convenient and patient-friendly approach to drug administration. This transition, however, requires careful management to ensure that therapeutic drug levels are maintained, preserving efficacy and avoiding adverse effects. Understanding pharmacokinetic principles and dosage calculations is critical during this process.Pharmacokinetics of the...
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Innovations in subcutaneous infusions.

Annette O Arthur1

  • 1Department of Emergency Medicine, University of Oklahoma School of Community Medicine, Tulsa, Oklahoma. †Deceased. Annette O. Arthur, PharmD, was an assistant professor and research director in the Department of Emergency Medicine at the University of Oklahoma School of Community Medicine in Tulsa, Oklahoma. She had been a pharmacist for more than 20 years, the first 9 of which were in the home infusion industry.

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Summary

Subcutaneous drug delivery offers a convenient and cost-effective parenteral route. Coadministration with hyaluronidase enhances SC drug absorption, mimicking intravenous delivery for improved patient outcomes.

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Area of Science:

  • Pharmacology
  • Drug Delivery Systems
  • Biotechnology

Background:

  • Parenteral drug administration is critical in patient care.
  • Subcutaneous (SC) delivery presents advantages in accessibility, cost-effectiveness, and patient convenience over other parenteral routes.
  • SC drug pharmacokinetics closely resemble intravenous (IV) delivery.

Purpose of the Study:

  • To evaluate the pharmacokinetic profile of SC drug delivery.
  • To assess the impact of human recombinant hyaluronidase coadministration on SC drug pharmacokinetics.
  • To highlight the development of novel SC drug formulations.

Main Methods:

  • Pharmacokinetic analysis of SC drug administration.
  • Comparative study of SC versus IV drug delivery.
  • Evaluation of SC drug formulations with hyaluronidase coadministration.

Main Results:

  • SC drug delivery demonstrates bioavailability comparable to IV administration.
  • Coadministration of human recombinant hyaluronidase with SC medications improves maximum concentration and time to maximum concentration, aligning SC profiles with IV delivery.
  • Pharmaceutical development is advancing new SC medication formulations.

Conclusions:

  • Subcutaneous drug delivery is a viable and advantageous parenteral route.
  • Human recombinant hyaluronidase significantly enhances SC drug absorption, making it more comparable to IV delivery.
  • Ongoing pharmaceutical research is expanding the utility of SC drug delivery systems.