Abstract:
:The dispersion performances of inhalation powders are often tested at only one inhalation flow rate in mechanistic formulation studies. This limited approach is challenged by studies showing that interactions exist between inhalation flow rate and the effects on dispersion performance of several formulation variables. In this note we explain that such interactions with inhalation flow rate are, in fact, always to be expected. Because these interactions may greatly affect conclusions concerning the effects of formulation variables and their underlying mechanisms, the utility of future dry powder inhalation formulation studies may benefit from an approach in which dispersion performance is by default tested over a range of inhalation flow rates.
journal_name
Int J Pharmjournal_title
International journal of pharmaceuticsauthors
Grasmeijer F,de Boer AHdoi
10.1016/j.ijpharm.2014.02.024subject
Has Abstractpub_date
2014-04-25 00:00:00pages
165-8issue
1-2eissn
0378-5173issn
1873-3476pii
S0378-5173(14)00117-3journal_volume
465pub_type
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