Dry powder inhalers: Particle size and patient-satisfaction

Inhalational route is the cornerstone for drug delivery in asthma. Dry powder inhalers efficiently deliver drug particles to lungs depending on patients' breath actuation and without using propellants. Drug delivery in lungs is dependent primarily on particle size distribution of the formulatio...

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Main Authors: S K Jindal, K K Pandey, P P Bose
Format: Article
Language:English
Published: Jaypee Brothers Medical Publisher 2021-01-01
Series:Indian Journal of Respiratory Care
Subjects:
Online Access:http://www.ijrc.in/article.asp?issn=2277-9019;year=2021;volume=10;issue=1;spage=14;epage=18;aulast=Jindal
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author S K Jindal
K K Pandey
P P Bose
author_facet S K Jindal
K K Pandey
P P Bose
author_sort S K Jindal
collection DOAJ
description Inhalational route is the cornerstone for drug delivery in asthma. Dry powder inhalers efficiently deliver drug particles to lungs depending on patients' breath actuation and without using propellants. Drug delivery in lungs is dependent primarily on particle size distribution of the formulation. Several studies have proved that drug particles 1–3 μm in size provide optimum efficacy with minimum adverse events. Particles >3 μm are deposited in the oropharynx and those <1 μm are exhaled. However, these fine particles might not be felt in the mouth due to which patients may feel that appropriate amount of drug was not dispensed. This perception may negatively influence patient satisfaction and confidence on the device. The patient education on the absence of mouthfeel is thus essential. Treating physicians should provide optimum patient counseling and education addressing the importance of particle size for desired clinical effects.
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spelling doaj.art-85650aed95f14125807759b143f1cb452023-09-03T15:12:33ZengJaypee Brothers Medical PublisherIndian Journal of Respiratory Care2277-90192321-48992021-01-01101141810.4103/ijrc.ijrc_57_19Dry powder inhalers: Particle size and patient-satisfactionS K JindalK K PandeyP P BoseInhalational route is the cornerstone for drug delivery in asthma. Dry powder inhalers efficiently deliver drug particles to lungs depending on patients' breath actuation and without using propellants. Drug delivery in lungs is dependent primarily on particle size distribution of the formulation. Several studies have proved that drug particles 1–3 μm in size provide optimum efficacy with minimum adverse events. Particles >3 μm are deposited in the oropharynx and those <1 μm are exhaled. However, these fine particles might not be felt in the mouth due to which patients may feel that appropriate amount of drug was not dispensed. This perception may negatively influence patient satisfaction and confidence on the device. The patient education on the absence of mouthfeel is thus essential. Treating physicians should provide optimum patient counseling and education addressing the importance of particle size for desired clinical effects.http://www.ijrc.in/article.asp?issn=2277-9019;year=2021;volume=10;issue=1;spage=14;epage=18;aulast=Jindalasthmachronic obstructive pulmonary diseasedry powder inhalerinhalational devicesmouthfeelparticle sizepatient education
spellingShingle S K Jindal
K K Pandey
P P Bose
Dry powder inhalers: Particle size and patient-satisfaction
Indian Journal of Respiratory Care
asthma
chronic obstructive pulmonary disease
dry powder inhaler
inhalational devices
mouthfeel
particle size
patient education
title Dry powder inhalers: Particle size and patient-satisfaction
title_full Dry powder inhalers: Particle size and patient-satisfaction
title_fullStr Dry powder inhalers: Particle size and patient-satisfaction
title_full_unstemmed Dry powder inhalers: Particle size and patient-satisfaction
title_short Dry powder inhalers: Particle size and patient-satisfaction
title_sort dry powder inhalers particle size and patient satisfaction
topic asthma
chronic obstructive pulmonary disease
dry powder inhaler
inhalational devices
mouthfeel
particle size
patient education
url http://www.ijrc.in/article.asp?issn=2277-9019;year=2021;volume=10;issue=1;spage=14;epage=18;aulast=Jindal
work_keys_str_mv AT skjindal drypowderinhalersparticlesizeandpatientsatisfaction
AT kkpandey drypowderinhalersparticlesizeandpatientsatisfaction
AT ppbose drypowderinhalersparticlesizeandpatientsatisfaction