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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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Oral Drug Delivery Systems: Introduction01:23

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Oral drug delivery is the most common route of administration due to its convenience, cost-effectiveness, and high patient compliance. It enables precise formulation to ensure proper drug dosage and bioavailability. The development of oral dosage forms considers drug properties such as solubility, stability, and absorption to optimize therapeutic efficacy.Tablets, capsules, liquids, and chewable formulations enhance drug stability, mask undesirable tastes, and improve patient experience.
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Intrauterine Drug Delivery Systems01:21

Intrauterine Drug Delivery Systems

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Controlled-release systems for intravaginal and intrauterine drug delivery have been developed primarily for the administration of contraceptive steroid hormones. These delivery routes circumvent first-pass hepatic metabolism, thereby enhancing bioavailability and allowing for reduced systemic dosages compared to oral administration. Such approaches contribute to improved therapeutic efficacy and patient compliance, particularly in long-term contraceptive regimens.Intravaginal Drug Delivery...
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Additional Routes of Drug Administration01:18

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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.
Administering drugs via inhalation allows for the direct delivery of gaseous, volatile substances or droplets to different parts of the respiratory tract. One of the advantages of the inhalation route is the rapid absorption of drugs into the circulatory system, which is possible because of the large surface area of...
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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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Related Experiment Video

Updated: Apr 17, 2026

Dry Powder and Nebulized Aerosol Inhalation of Pharmaceuticals Delivered to Mice Using a Nose-only Exposure System
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Inhalation drug delivery devices: technology update.

Mariam Ibrahim1, Rahul Verma1, Lucila Garcia-Contreras1

  • 1Department of Pharmaceutical Sciences, College of Pharmacy, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.

Medical Devices (Auckland, N.Z.)
|February 25, 2015
PubMed
Summary

Pulmonary drug delivery via inhalers is effective but often fails due to incorrect device use. This review details inhaler technology and strategies to improve aerosol administration and patient outcomes.

Keywords:
asthmadry powder inhalermetered dose inhalernebulizerspulmonary delivery

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Area of Science:

  • Pharmaceutical Sciences
  • Biomedical Engineering
  • Respiratory Medicine

Background:

  • Pulmonary drug delivery offers local and systemic therapeutic benefits for various diseases.
  • Effective administration relies on the synergy between drug formulation, inhaler device, and patient technique.
  • Incorrect inhaler use is a primary cause of treatment failure and adverse events.

Purpose of the Study:

  • To review the structural and mechanical aspects of aerosol delivery devices.
  • To analyze aerosol generation mechanisms, formulation compatibility, and device limitations.
  • To provide an update on advanced designs addressing current challenges in pulmonary administration.

Main Methods:

  • Literature review of aerosol delivery devices.
  • Analysis of device mechanics, aerosolization processes, and formulation interactions.
  • Evaluation of current technological advancements and future design considerations.

Main Results:

  • Inhaler device design significantly impacts aerosol deposition and therapeutic efficacy.
  • Patient-device interaction, particularly coordination, is critical for successful pulmonary drug delivery.
  • Existing devices have limitations, necessitating innovation in design and user training.

Conclusions:

  • Optimizing inhaler devices and improving patient training are essential for enhancing pulmonary drug delivery.
  • Technological advancements aim to simplify device use and improve aerosol performance.
  • Addressing user error is key to realizing the full potential of inhaled therapies.