Albuterol 90mcg/inh; metered-dose aerosol; contains hydrofluoroalkane; CFC-free. Activation of beta2-adrenergic receptors on airway smooth muscle leads to the activation of adenylcyclase and to an ...

Adenylyl cyclase creates multiple cyclic AMP molecules, which fan out and activate protein kinases (PKA, in this example). Protein kinases can enter the nucleus and affect transcription.

Increased cyclic AMP levels cause relaxation of bronchial smooth muscle. Prime before using for the first time, when the inhaler has not been used for more than 2 weeks, or when the inhaler has ...