ซื้อfenoterol hydrobromide 50 mcg/1 dose + ipratropium bromide 20 mcg/1 dose pressurised inhalation, solution, fluticasone propionate 250 mcg/1 dose + salmeterol 25 mcg/1 dose pressurised inhalation, suspension, salbutamol 100 mcg/1 dose pressurised inhalation, suspension โดยวิธีเฉพาะเจาะจง