<![CDATA[Asthma is a chronic inflammatory disease requiring long-term inhalation therapy. Treatment success depended on both the prescribed medication and the correct use of the inhaler. This study aimed to evaluate the accuracy of the Turbuhaler technique and its association with asthma control. A prospective cross-sectional study was conducted among 39 adult outpatients using a Turbuhaler at a hospital in Yogyakarta, Indonesia. Inhaler technique was evaluated using a checklist, and asthma control was assessed with the Asthma Control Test (ACT). The association was analyzed using Fisher's exact test. The results showed that 76.92% of patients used the Turbuhaler incorrectly and that 79.49% did not achieve asthma control. A significant association was found between correct technique and asthma control (p < 0.001), with a prevalence ratio of 9.00 (95% confidence interval [CI], 1.42–57.12). Patients who performed the technique correctly were nine times more likely to achieve control. The most frequently missed steps were holding one's breath after inhaling, rinsing one's mouth, and taking a deep breath. Correct Turbuhaler technique is a key determinant of asthma control. Pharmacist-led education focusing on these critical steps is essential to optimize treatment outcomes and prevent adverse effects.]]>
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