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Pressurized metered-dose inhalers: risk of airway obstruction from aspiration of loose objects

20th July 2018

MHRA has received reports of accidental inhalation of the mouthpiece cover or objects that have become trapped in pressurized metered-dose inhalers following incorrect storage. Health professionals are advised to train patients to remove the mouthpiece cover fully, shake the inhaler to remove loose objects that may not be visible, check the inside and outside of the mouthpiece are clear before inhaling a dose and replace the cover firmly and immediately after use, to minimise this risk.

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