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Observational study finds increased health care utilization among veterans switching inhaler formulations, suggesting potential harm from formulary shifts.
The study found that the VHA formulary transition from budesonide-formoterol metered-dose inhaler to fluticasone-salmeterol dry-powder inhaler was associated with increased health care utilization, suggesting potential harm and the need to reevaluate this policy change.
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Rabin et al. (2025) studied this question.
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