tudorza pressair - Medication Listings

TUDORZA PRESSAIR consists of a dry powder formulation of aclidinium bromide for oral inhalation only. Aclidinium bromide, the active component of TUDORZA PRESSAIR is an anticholinergic with specificity for muscarinic receptors. Aclidinium bromide is a synthetic, quaternary ammonium compound, chemically described as 1-azoniabicyclo[2.2.2]octane, 3-[(hydroxydi-2-thienylacetyl)oxy]-1-(3-phenoxypropyl)-, bromide, (3 R )-. The structural formula is: Aclidinium bromide is a white powder with a molecular formula of C 26 H 30 NO 4 S 2 Br and a molecular mass of 564.56. It is very slightly soluble in water and ethanol and sparingly soluble in methanol. TUDORZA PRESSAIR is a breath-actuated multi-dose dry powder inhaler. Each actuation of TUDORZA PRESSAIR provides a metered dose of 13 mg of the formulation which contains lactose monohydrate (which may contain milk proteins) as the carrier and 400 mcg of aclidinium bromide (equivalent to 343 mcg of aclidinium). This results in delivery of 375 mcg aclidinium bromide (equivalent to 322 mcg of aclidinium) from the mouthpiece, based on in vitro testing at an average flow rate of 63 L/min with constant volume of 2 L. The amount of drug delivered to the lungs will vary depending on patient factors such as inspiratory flow rate and inspiratory time. Structural Formula