| Summary: | Abstract Background A heavy financial burden is imposed on patients suffering from chronic diseases due to medicine out-of-pocket payments. Objectives This study focuses on assessing the affordability of medications used for chronic respiratory diseases (CRDs) such as asthma, chronic obstructive pulmonary disease (COPD), and cystic fibrosis (CF) in Iran, specifically on the category R medicines listed in the 2017 Iran drug list (IDL) that are used for the treatment of these diseases, based on the anatomical therapeutic chemical (ATC) drug code. Methods The affordability of medicines in mono and combination therapy approaches was assessed in CRDs using the World Health Organization/Health Action International (WHO/HAI) methodology. Accordingly, if out-of-pocket payment for 30-days of pharmacotherapy exceeds one day for the lowest-paid unskilled government worker (LPGW), it’s considered non-affordable. Results Based on the monotherapy approach, our finding demonstrates that all generic medicines of category R were affordable. However, branded drugs such as Symbicort®, Pulmicort Respules®, Flusalmex®, Seretide®, Fluticort Plus®, Seroflo®, and Salmeflo® cost between 1.2 and 2.5 days’ wage of LPGW and considered unaffordable despite 70% insurance coverage. Moreover, based on the affordability ratio in the combination therapy approach, all medicines used in asthma, COPD, and CF patients with mild respiratory problems are affordable except omalizumab (inj), which is non-affordable due to its high price and no insurance coverage. Conclusion Results showed that the existing insurance coverage does not protect households from hardship, so more considerations are needed such as different insurance schedules and patient support programs.
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