SPL Set ID: 370516c4-718f-4a71-bdc8-8822060ccefe

The active components in ipratropium bromide and albuterol sulfate inhalation solution, USP are albuterol sulfate USP and ipratropium bromide USP. Albuterol sulfate, is a salt of racemic albuterol and a relatively selective β 2 -adrenergic bronchodilator chemically described as α 1 -[(tert-butylamino)methyl]-4-hydroxy-m-xylene-α, α’-diol sulfate (2:1) (salt). It has a molecular weight of 576.7 and the molecular formula is (C 13 H 21 NO 3 ) 2 •H 2 SO 4 . It is a white to practically white crystalline powder, freely soluble in water and slightly soluble in alcohol, chloroform and ether. The World Health Organization recommended name for albuterol base is salbutamol. Ipratropium bromide is an anticholinergic bronchodilator chemically described as 8-azoniabicyclo [3.2.1]-octane, 3-(3-hydroxy-1-oxo-2-phenylpropoxy)-8methyl-8-(1-methylethyl)-, bromide, monohydrate (endo, syn)-, (±)-; a synthetic quaternary ammonium compound, chemically related to atropine. It has a molecular weight of 430.4 and the molecular formula is C 20 H 30 BrNO 3 •H 2 O. It is a white to off white crystalline powder, soluble in water, freely soluble in methanol and slightly soluble in ethanol, insoluble in isopropyl alcohol, chloroform, methylene chloride and benzene. Each 3 mL vial of ipratropium bromide and albuterol sulfate inhalation solution, USP contains 3 mg (0.1%) of albuterol sulfate USP (equivalent to 2.5 mg (0.083%) of albuterol base) and 0.5 mg (0.017%) of ipratropium bromide USP in an isotonic, sterile, aqueous solution containing edetate disodium (a chelating agent), sodium chloride and hydrochloric acid to adjust to pH 4. Ipratropium bromide and albuterol sulfate inhalation solution, USP is a clear, colorless solution. Practically free from visible particles and foreign matters packed in natural BFS LDPE vial. It does not require dilution prior to administration by nebulization. For ipratropium bromide and albuterol sulfate inhalation solution, USP, like all other nebulized treatments, the amount delivered to the lungs will depend on patient factors, the jet nebulizer utilized, and compressor performance. Using the Pari-LC-Plus™ nebulizer (with face mask or mouthpiece) connected to a PRONEB™ compressor system, under in vitro conditions, the mean delivered dose from the mouth piece (% nominal dose) was approximately 46% of albuterol and 42% of ipratropium bromide at a mean flow rate of 3.6 L/min. The mean nebulization time was 15 minutes or less. Ipratropium bromide and albuterol sulfate inhalation solution, USP should be administered from jet nebulizers at adequate flow rates, via face masks or mouthpieces (see DOSAGE AND ADMINISTRATION ). Figure 1: Chemical structure of albuterol sulfate. Figure 2: Chemical structure of ipratropium bromide.