With each click or twist, an automated counter tells you how many doses are left. Examples of DPIs include those with the names Digihaler, Handihaler, Ellipta, Diskus, Pressair, Neohaler, Twisthaler, ...

Advair lost US patent protection in 2010 and exclusivity on the Diskus inhaler went in 2016 - but it took until February 2019 for the FDA to approve a generic from Mylan, now part of Viatris.

Hikma's filing for a generic version of GlaxoSmithKline's Advair Diskus has been accepted by the FDA. The abbreviated new drug application (ANDA) for the fluticasone propionate and salmeterol ...