Stop using the flotation technique and start weighing salbutamol pressurised metered-dose inhalers without dose counters

Salbutamol pressurised metered-dose inhalers (pMDIs) are not equipped with dose counters outside the USA. The aim of this study was to describe a simple reproducible method for determining the number of doses remaining in a pMDI based on scale weight. With a laboratory scale, the mean weight of th...

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Main Authors: Ermindo R. Di Paolo, Stéphanie Spaggiari, André Pannatier, Farshid Sadeghipour, Isabelle Rochat, Gaudenz M Hafen
Format: Article
Language:English
Published: SMW supporting association (Trägerverein Swiss Medical Weekly SMW) 2015-07-01
Series:Swiss Medical Weekly
Subjects:
Online Access:https://www.smw.ch/index.php/smw/article/view/2051
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author Ermindo R. Di Paolo
Stéphanie Spaggiari
André Pannatier
Farshid Sadeghipour
Isabelle Rochat
Gaudenz M Hafen
author_facet Ermindo R. Di Paolo
Stéphanie Spaggiari
André Pannatier
Farshid Sadeghipour
Isabelle Rochat
Gaudenz M Hafen
author_sort Ermindo R. Di Paolo
collection DOAJ
description Salbutamol pressurised metered-dose inhalers (pMDIs) are not equipped with dose counters outside the USA. The aim of this study was to describe a simple reproducible method for determining the number of doses remaining in a pMDI based on scale weight. With a laboratory scale, the mean weight of the canisters was 28.61 ± 0.10 g after priming and 14.84 ± 0.23 g after 200 puffs. Similar results were obtained with two common digital scales. We recommend weighing salbutamol canisters on a common digital scale, and replacing an old pMDI with a new one when the weight falls to ≤15 g.
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spelling doaj.art-e725b0da50dd4c0a80f1d5fa70431c652022-12-22T04:24:36ZengSMW supporting association (Trägerverein Swiss Medical Weekly SMW)Swiss Medical Weekly1424-39972015-07-01145313210.4414/smw.2015.14162Stop using the flotation technique and start weighing salbutamol pressurised metered-dose inhalers without dose countersErmindo R. Di PaoloStéphanie SpaggiariAndré PannatierFarshid SadeghipourIsabelle RochatGaudenz M Hafen Salbutamol pressurised metered-dose inhalers (pMDIs) are not equipped with dose counters outside the USA. The aim of this study was to describe a simple reproducible method for determining the number of doses remaining in a pMDI based on scale weight. With a laboratory scale, the mean weight of the canisters was 28.61 ± 0.10 g after priming and 14.84 ± 0.23 g after 200 puffs. Similar results were obtained with two common digital scales. We recommend weighing salbutamol canisters on a common digital scale, and replacing an old pMDI with a new one when the weight falls to ≤15 g. https://www.smw.ch/index.php/smw/article/view/2051pressurised metered-dose inhalersdose counter
spellingShingle Ermindo R. Di Paolo
Stéphanie Spaggiari
André Pannatier
Farshid Sadeghipour
Isabelle Rochat
Gaudenz M Hafen
Stop using the flotation technique and start weighing salbutamol pressurised metered-dose inhalers without dose counters
Swiss Medical Weekly
pressurised metered-dose inhalers
dose counter
title Stop using the flotation technique and start weighing salbutamol pressurised metered-dose inhalers without dose counters
title_full Stop using the flotation technique and start weighing salbutamol pressurised metered-dose inhalers without dose counters
title_fullStr Stop using the flotation technique and start weighing salbutamol pressurised metered-dose inhalers without dose counters
title_full_unstemmed Stop using the flotation technique and start weighing salbutamol pressurised metered-dose inhalers without dose counters
title_short Stop using the flotation technique and start weighing salbutamol pressurised metered-dose inhalers without dose counters
title_sort stop using the flotation technique and start weighing salbutamol pressurised metered dose inhalers without dose counters
topic pressurised metered-dose inhalers
dose counter
url https://www.smw.ch/index.php/smw/article/view/2051
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