SPL Set ID: 9c122b91-a11f-49ca-80bb-3eec5112db87

AIRDUO RESPICLICK 55 mcg/14 mcg, AIRDUO RESPICLICK 113 mcg/14 mcg and AIRDUO RESPICLICK 232 mcg/14 mcg are combinations of fluticasone propionate and salmeterol. Fluticasone Propionate One active component of AIRDUO RESPICLICK is fluticasone propionate, a corticosteroid having the chemical name S -(fluoromethyl) 6α,9-difluoro-11ß,17-dihydroxy-16α-methyl-3-oxoandrosta-1,4-diene-17ß-carbothioate, 17-propionate, and the following chemical structure: Fluticasone propionate is a white powder with a molecular weight of 500.6, and the empirical formula is C 25 H 31 F 3 O 5 S. It is practically insoluble in water, freely soluble in dimethyl sulfoxide and dimethylformamide, and slightly soluble in methanol and 95% ethanol. Salmeterol Xinafoate The other active component of AIRDUO RESPICLICK is salmeterol xinafoate, a beta 2 –adrenergic bronchodilator. Salmeterol xinafoate is the racemic form of the 1‑hydroxy‑2‑naphthoic acid salt of salmeterol. It has the chemical name 4-hydroxy-α -[[[6-(4-phenylbutoxy)hexyl]amino]methyl]-1,3-benzenedimethanol, 1-hydroxy-2-naphthalenecarboxylate and the following chemical structure: Salmeterol xinafoate is a white powder with a molecular weight of 603.8, and the empirical formula is C 25 H 37 NO 4 •C 11 H 8 O 3 . It is freely soluble in methanol; slightly soluble in ethanol, chloroform, and isopropanol; and sparingly soluble in water. AIRDUO RESPICLICK AIRDUO RESPICLICK is a multidose dry powder inhaler (MDPI) for oral inhalation only. It contains fluticasone propionate, salmeterol xinafoate, and lactose monohydrate (which may contain milk proteins). The opening of the mouthpiece cover meters 5.5 mg of the formulation from the device reservoir, which contains 55 mcg, 113 mcg, or 232 mcg of fluticasone propionate, and 14 mcg of salmeterol base (equivalent to 20.3 mcg of salmeterol xinafoate). Patient inhalation through the mouthpiece causes the deagglomeration and aerosolization of the drug particles as the formulation moves through the cyclone component of the device. This is followed by dispersion into the airstream. Under standardized in vitro test conditions, the AIRDUO RESPICLICK inhaler delivers 49 mcg, 100 mcg, or 202 mcg of fluticasone propionate and 12.75 mcg of salmeterol base (equivalent to 18.5 mcg of salmeterol xinafoate), with lactose from the mouthpiece when tested at a flow rate of 85 L/min for 1.4 seconds. The amount of drug delivered to the lung will depend on patient factors such as inspiratory flow profiles. In adult subjects (N=50, aged 18 to 45 years) with asthma, mean peak inspiratory flow (PIF) through the AIRDUO RESPICLICK inhaler was 108.28 L/min (range: 70.37 to 129.24 L/min). In adolescent subjects (N=50, aged 12 to 17 years) with asthma, mean peak inspiratory flow (PIF) through the AIRDUO RESPICLICK inhaler was 106.72 L/min (range: 73.64 to 125.51 L/min). FP chem structure Salmeterol chem structure