SPL Set ID: e60aa9f9-5139-44df-b886-ebddc3c7eb13

AIRSUPRA (albuterol and budesonide) Inhalation Aerosol is a pressurized metered dose inhaler containing a combination of micronized albuterol sulfate, a relatively selective, short-acting beta 2 -adrenergic agonist and micronized budesonide, a corticosteroid, for oral inhalation. Albuterol sulfate is the official generic name in the United States. The World Health Organization recommended name for the drug is salbutamol sulfate. Albuterol sulfate has the following chemical name: USP racemic α 1 [( tert- Butylamino)methyl]-4-hydroxy- m -xylene-α,α'-diol sulfate (2:1) (salt). The empirical formula is (C 13 H 21 NO 3 ) 2 •H 2 SO 4 , and the molecular weight is 576.7. Its structural formula is: Albuterol sulfate is a white to off-white powder that is freely soluble in water, slightly soluble in alcohol and in ether, and practically insoluble in chloroform. It has a LogP of 0.44 at physiological pH. Albuterol has one chiral center and exists as a 1:1 racemic mixture. Budesonide is a corticosteroid designated chemically as (RS)-11β, 16α, 17,21-Tetrahydroxypregna-1,4-diene-3,20-dione cyclic 16,17-acetal with butyraldehyde. Budesonide is provided as a mixture of two epimers (22R and 22S). The empirical formula of budesonide is C 25 H 34 O 6 and its molecular weight is 430.5. Its structural formula is: Budesonide is a white to off-white powder that is practically insoluble in water and in heptane, sparingly soluble in ethanol, and freely soluble in chloroform. Its partition coefficient between octanol and water at pH 7.4 is 1.6 x 10 3 . AIRSUPRA is formulated as a hydrofluoroalkane (HFA-134a) propelled pressurized metered dose inhaler containing 120 inhalations. The canister has an attached dose indicator and is supplied with a white plastic actuator with a frosted clear plastic dust cap tethered to it. After priming, each actuation of AIRSUPRA 90 mcg/80 mcg meters 99 mcg of albuterol and 88 mcg of budesonide from the valve which delivers 90 mcg of albuterol (equivalent to 108 mcg of albuterol sulfate) and 80 mcg of budesonide from the actuator. The actual amount of drug delivered to the lung may depend on patient factors, such as the coordination between actuation of the device and inhalation through the delivery system. AIRSUPRA also contains porous particles that form a co-suspension with the drug crystals. The porous particles are comprised of the phospholipid 1,2-distearoyl- sn -glycero-3-phosphocholine (DSPC) and calcium chloride. Porous particles and HFA-134a are excipients in the formulation. Albuterol structural formula Budesonide structural formula