Replace the cap on the metered dose inhaler.

Metered dose inhalers have a well established role in the management of bronchial asthma.

We describe two cases of accidental aspiration of a foreign body after use of a metered dose inhaler.

Doctors should take a careful history and be aware of this problem in the regular follow up of patients using metered dose inhalers long term.

Careful instruction in the use of metered dose inhalers is an essential part of educating asthmatic patients.

Spacers can be especially helpful to adults and children who find a regular metered dose inhaler hard to use.

Learn more about metered dose inhalers and how they can be used to heal some of the symptoms of asthma.

One common application is for inhalation therapy, where the concept has been used in the development of alternatives to pressurised metered dose inhalers.

Remove the cap from the metered dose inhaler.

Learn if a metered dose inhaler is right for you.