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Related Concept Videos

Inhaled Medications01:23

Inhaled Medications

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Inhaled medications are crucial for managing chronic obstructive pulmonary disease (COPD) and asthma. They are essential for effective treatment and control, ensuring optimal respiratory health and well-being. Inhaled medication delivers drugs directly to the lungs, providing a rapid onset of action and reducing systemic side effects compared to oral or injectable medications. Three primary types of inhalation devices are used to administer these medications: nebulizers, metered-dose inhalers...
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Drug Delivery: Miscellaneous Routes01:22

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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...
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Additional Routes of Drug Administration01:18

Additional Routes of Drug Administration

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Choosing the appropriate route of drug administration is significantly influenced by two key factors: the therapeutic objectives and the inherent properties of the drug being used.
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Vaporization01:18

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The physical form of a substance changes by changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. For vaporization to occur, kinetic energy must be greater than the intermolecular forces that keep molecules bonded. The amount of energy needed to vaporize a quantity of liquid at a given pressure and a constant temperature is called the heat of vaporization. When...
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Related Experiment Video

Updated: Sep 13, 2025

Disposable Dosators for Pulmonary Insufflation of Therapeutic Agents to Small Animals
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Spray Drying: A Promising Technique for Inhalable Vaccine Development.

Sridhar Vemulapalli1, Satish Rojekar2, Manit Gandhi3

  • 1Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE, 68198-6025, USA.

Current Pharmaceutical Biotechnology
|July 31, 2025
PubMed
Summary
This summary is machine-generated.

Spray drying offers a novel method for creating inhalable vaccines, overcoming traditional delivery challenges. This technique produces fine powders for direct lung delivery, enhancing immune responses and global health accessibility.

Keywords:
Inhalable vaccinedry powder vaccineimmune responseparticle characteristicspulmonary deliveryrespiratory mucosaspray dryingsystemic immune response.

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Area of Science:

  • Vaccinology
  • Materials Science
  • Pharmaceutical Technology

Background:

  • Traditional vaccine delivery methods present challenges in administration, storage, and accessibility, particularly in resource-limited regions.
  • Inhalable vaccines represent a promising alternative, targeting the respiratory mucosa for direct immune stimulation.
  • Spray drying is explored as a key technology for developing effective inhalable vaccine formulations.

Purpose of the Study:

  • To review the potential of spray drying for formulating inhalable vaccines.
  • To highlight how spray drying can overcome limitations of conventional vaccine delivery.
  • To explore the characteristics of spray-dried vaccine particles and their immunogenicity.

Main Methods:

  • Review of existing literature on spray drying techniques for vaccine formulation.
  • Analysis of particle properties, aerodynamic performance, and immune responses elicited by spray-dried vaccines.
  • Evaluation of spray drying's suitability for large-scale vaccine production and global health applications.

Main Results:

  • Spray drying effectively transforms liquid vaccine formulations into inhalable powders.
  • Spray-dried particles demonstrate suitable characteristics for efficient pulmonary delivery.
  • Inhalable vaccines formulated via spray drying can induce significant mucosal and systemic immunity.

Conclusions:

  • Spray drying is a versatile and promising technology for developing next-generation inhalable vaccines.
  • This method has the potential to improve vaccine accessibility, stability, and efficacy globally.
  • Further research and development in spray-dried inhalable vaccines could revolutionize public health strategies.