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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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Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection,  and rectal administration provide localized effects with reduced toxicity.
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Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...
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Disposable Dosators for Pulmonary Insufflation of Therapeutic Agents to Small Animals
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Optimization of Carrier-Based Dry Powder Inhaler Performance: A Review.

Tanu Mehta1, Saeed Najafian1,2, Komalkumar Patel3

  • 1Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT 06269, USA.

Pharmaceutics
|January 25, 2025
PubMed
Summary
This summary is machine-generated.

Dry powder inhalers (DPIs) use carrier-based formulations for effective pulmonary drug delivery. Formulation components, device design, and manufacturing processes significantly impact DPI aerosol performance.

Keywords:
carrierdevice designdry powder inhalerformulation optimizationmanufacturing

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Area of Science:

  • Pharmaceutical Sciences
  • Drug Delivery
  • Materials Science

Background:

  • Dry powder inhalers (DPIs) are gaining popularity for pulmonary drug delivery.
  • Achieving optimal aerosol performance requires careful control over formulation and manufacturing processes.

Purpose of the Study:

  • To review factors influencing the aerosol performance of carrier-based DPIs.
  • To discuss formulation components, device considerations, and manufacturing parameters impacting DPI efficacy.

Main Methods:

  • Review of scientific literature on DPI formulation and manufacturing.
  • Analysis of factors affecting aerosolization of micronized active pharmaceutical ingredients (APIs) with carriers.

Main Results:

  • API particle size (1-5 μm) is critical for deep lung delivery but leads to poor flowability.
  • Carrier-based formulations improve powder flowability for DPIs.
  • Formulation components (e.g., lactose, magnesium stearate) and manufacturing steps (e.g., micronization, blending) critically affect aerosol performance.

Conclusions:

  • Optimizing DPI performance necessitates a holistic approach, considering formulation, device, and manufacturing.
  • Novel technologies offer potential for enhancing DPI aerosolization and drug delivery efficiency.