Cost Evaluation of Inhaler Therapies Used in Respiratory Diseases: 1998--2015 Period in Turkey.

Background: With the rise in life expectancy, the burden of chronic diseases, including obstructive pulmonary diseases, has increased throughout the world.

Objectives: To evaluate the sales trends of inhaler pharmaceuticals.

Methods: The changes in box sales and sales amounts (in Turkish lira) of inhaler pharmaceuticals during the period 1998 to 2015 were examined and sales were projected for the next 3 years.