Patient feedback of dosen taken (visual/acoustic)

Lactose carrier (taste feedback)

Dose counter

Dose counter measuring inhalations actually taken

Accurate & consistent dose delivery

FPF air flow rate independence

> 12yrs Achievable IFR (asthmatic child, severe asthma COPD)

+++ Device resistance

Minimum FR controlled to achieve adequate lung deposition?


Dose metering: blister pack (maximum)

(120) Reservoir (maximum)

Advance warning of last dose

Protection from ambient humidity

Device lock.out


120 Max. number of doses

How to use Twisthaler

The Twisthaler® is an inhalation device relatively independent of flow rates. It has been demonstrated that with inspiratory flows between 28 l/min and 60 l/min 91% to 112% of the metered dose is delivered at the mouthpiece.

The fraction of particles smaller than 6.5 µm amounts up to 40% at an inspiratory flow of 60 l/min. Additionally drug doses released from the Twisthaler® only vary slightly between each dose.

The Twisthaler® is approved for mometasone furoate (Asmanex®).

This section contains a list of things you should do (DOs) and things you shouldn’t do (DON’Ts) when using the Twisthaler. This list only covers items known from practice to be the most important and most likely to be forgotten or performed incorrectly by patients; this information is in addition to the prescribing and other information provided with the Twisthaler.