SPL Set ID: 715433dc-cb2b-43ea-b6df-c5b4177adc6c

BREZTRI AEROSPHERE (budesonide, glycopyrrolate and formoterol fumarate) Inhalation Aerosol is a pressurized metered-dose inhaler that delivers a combination of micronized budesonide [an inhaled corticosteroid (ICS)], micronized glycopyrrolate (an anticholinergic), and micronized formoterol fumarate [an inhaled long-acting beta 2 -adrenergic agonist (a LABA)] for oral inhalation. Budesonide is a corticosteroid with the following chemical name: (RS)-11β, 16α, 17,21-Tetrahydroxypregna-1,4-diene-3,20-dione cyclic 16,17-acetal with butyraldehyde. Budesonide is a white to off-white, powder which is practically insoluble in water. The molecular formula is C 25 H 34 O 6 and the molecular weight is 430.54. The structural formula is as follows: Budesonide contains nine chiral centers and is a mixture of the two epimers (22R and 22S). Glycopyrrolate is a quaternary ammonium salt with the following chemical name: (RS)-[3-(SR)-Hydroxy-1,1-dimethylpyrrolidinium bromide] α-cyclopentylmandelate. Glycopyrrolate is a powder that is freely soluble in water. The molecular formula is C 19 H 28 BrNO 3 , and the molecular weight is 398.33 g/mol. The structural formula is as follows: Glycopyrrolate contains two chiral centers and is a racemate of a 1:1 mixture of the R,S and S,R diastereomers. The active moiety, glycopyrronium, is the positively charged ion of glycopyrrolate. Formoterol fumarate has the chemical name N-[2-Hydroxy-5-[(1RS)-1-hydroxy-2-[[(1RS)-2-(4-methoxyphenyl)-1-methylethyl]-amino] ethyl]phenyl] formamide, (E)-2-butenedioate dihydrate. Formoterol fumarate is a powder that is slightly soluble in water. The molecular formula is (C 19 H 24 N 2 O 4 ) 2 ·C 4 H 4 O 4 ·2H 2 O and the molecular weight is 840.91 g/mol. The structural formula is as follows: Formoterol fumarate contains two chiral centers and consists of a single enantiomeric pair (a racemate of R,R and S,S). BREZTRI AEROSPHERE is formulated as a hydrofluoroalkane (HFA 134a) propelled pressurized metered dose inhaler containing 28 or 120 inhalations. The canister has an attached dose indicator and is supplied with a yellow plastic actuator and white mouthpiece with a grey dust cap. After priming, each actuation of the inhaler meters 170 mcg of budesonide, 9.6 mcg of glycopyrrolate (equivalent to 7.7 mcg of glycopyrronium), and 5.1 mcg of formoterol fumarate (equivalent to 4.4 mcg of formoterol) from the valve which delivers 160 mcg of budesonide, 9.0 mcg of glycopyrrolate (equivalent to 7.2 mcg of glycopyrronium), and 4.8 mcg of formoterol fumarate (equivalent to 4.1 mcg of formoterol) 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 inspiration through the delivery system. BREZTRI AEROSPHERE 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. Budesonide Chemical Structure Glycopyrrolate Chemical Structure Formoterol Fumarate Chemical Structure