A method of coiling a strip of blisters for insertion into an inhalation device is disclosed. The method includes the steps of taking a preformed strip of blisters in which each blister contains a dose of medicament for inhalation by a user, manipulating the strip to impart a continuous curvature or a series of discrete creases to the strip that allow the strip to form into a coiled shape. A strip which has been coiled according to the method is also disclosed, as is an inhalation device incorporating means for coiling a strip of blisters according to the invention.
