Inhaled drugs are a viable means of targeting tobacco smoke-related diseases in the lungs: permeability is key to their successful delivery. This Commentary article explores the mechanisms by which drugs are delivered across cell membranes, as well as pertinent areas for present and future research.

This month, the discussion group debated the advantages and disadvantages of different types of inhalers. One key area of interest was current-day challenges with aerosol delivery, which could be addressed through smart inhalers and other innovative new devices.