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Related Concept Videos

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

Parenteral Drug Delivery Systems: Injectables, Implants, and Infusion Devices

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...
Drug Delivery: Parenteral Route01:29

Drug Delivery: Parenteral Route

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.
There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...
Routes of Drug Administration: Parenteral01:25

Routes of Drug Administration: Parenteral

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.
The intravenous route (IV) of drug administration can be further categorized into two types. The bolus injection administers the entire dose rapidly, while an intravenous infusion slowly delivers smaller doses steadily.
The IV route is often...
Drug Delivery: Miscellaneous Routes01:22

Drug Delivery: Miscellaneous Routes

Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection,  and rectal administration provide localized effects with reduced toxicity.
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs through the...
Transdermal Drug Delivery Systems01:18

Transdermal Drug Delivery Systems

Transdermal drug delivery systems (TDDS) enable the controlled release of drugs across the skin into systemic circulation. They are particularly advantageous for drugs with short half-lives or narrow therapeutic indices, as they maintain consistent plasma concentrations and reduce the risk of subtherapeutic or toxic levels.TDDS are categorized into monolithic, reservoir, and mixed systems. Monolithic systems embed the drug in a polymer matrix, where diffusion governs release. Reservoir systems...
Vaccinations01:51

Vaccinations

Overview

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Related Experiment Video

Updated: Jun 3, 2026

Intralymphatic Immunotherapy and Vaccination in Mice
07:33

Intralymphatic Immunotherapy and Vaccination in Mice

Published on: February 2, 2014

Delivery systems for intradermal vaccination.

Y C Kim1, C Jarrahian, D Zehrung

  • 1School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.

Current Topics in Microbiology and Immunology
|April 8, 2011
PubMed
Summary
This summary is machine-generated.

Intradermal vaccination offers better immunity but requires simple delivery. Numerous innovative technologies are emerging to improve skin-based vaccine delivery for wider clinical use.

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Area of Science:

  • Vaccinology
  • Biomedical Engineering
  • Dermatology

Background:

  • Intradermal vaccination provides enhanced immunity and logistical benefits but faces challenges in reliable skin delivery.
  • Current methods like Mantoux technique and scarification have limitations in efficacy and ease of use.
  • Despite challenges, intradermal delivery is crucial for vaccines like BCG and rabies.

Purpose of the Study:

  • To review and highlight emerging technologies for intradermal vaccine delivery.
  • To assess the potential of novel methods to overcome limitations of traditional techniques.
  • To explore advancements that could expand the clinical application of intradermal vaccination.

Main Methods:

  • Review of preclinical and clinical studies on various intradermal delivery systems.
  • Analysis of technologies including hollow microneedles, needle-free devices, gene guns, and microneedle patches.
  • Exploration of methods to enhance skin permeability for vaccine patches, such as ultrasound and electroporation.

Main Results:

  • Hollow microneedles offer a simplified, approved method for intradermal influenza vaccine delivery.
  • Needle-free jet injection and gene gun technologies are gaining renewed clinical interest for intradermal vaccination.
  • Solid microneedle patches and skin permeability enhancement techniques show promise in preclinical research.

Conclusions:

  • A diverse range of innovative technologies are under development for intradermal vaccine delivery.
  • These advancements hold significant promise for improving the efficiency and accessibility of skin-based vaccination.
  • The prospects for widespread clinical adoption of intradermal vaccination are encouraging due to ongoing technological progress.