Guidelines versus clinical practice--which therapy and which device?
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| Abstract |
Inhalation therapy delivers therapeutic agents directly into the lungs of patients with asthma, and is likely to remain the route of delivery of choice for the foreseeable future. The majority of patients with asthma suffer from mild intermittent to mild persistent disease for which regular low dose inhaled corticosteroids and on demand short-acting beta2-agonists have been recommended. These highly effective anti-asthma medications are readily available, and so in the future improvement in asthma therapy will most Likely derive from improvements in inhaler technology. Dry powder inhalers (DPIs) have many advantages compared to chlorofluorocarbon pressurised metered dose inhalers. Most notably, with DPIs patients no longer need to co-ordinate activation of the inhaler with inspiration. The Novolizer (VIATRIS, Germany) which is one of the latest developments in DPI technology offers a number of features required to increase the safety and efficacy of inhaled therapy. It is the first DPI to include an inspiratory trigger threshold, which helps to prevent sub-optimal dose administration. Repeated activation without inhalation is mechanically inhibited by an overdose prevention mechanism. In conclusion, there is good evidence that technically refined DPIs are more likely to advance inhaled anti-asthmatic therapy than newly developed inhaled drugs. This is important when inhalation therapy is considered not only for asthma but also for chronic obstructive pulmonary disease.
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| Authors | J Christian Virchow |
| Journal | Respiratory medicine (Respir Med) Vol. 98 Suppl B Pg. S28-34 (Oct 2004) ISSN: 0954-6111 [Print] England |
| PMID | 15481286 (Publication Type: Journal Article, Review) |
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