| Term 
 | Definition 
 
        | inhale or oral asthma bronchospasm, or preterm labor
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | inhale, subQ, or oral emergency asthma, broncospasm or preterm labor
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | less selective tha albuterol and terbutaline inhale or oral to treat bronchospasm
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | long duration > 12 hours 50 more selective
 slow onset
 asthma, copd, bronchospasm
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | similar to salmeterol but rapid onset of action while retaining long duration |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | created to isolate B2 bronchodilation without the B1 effects on the heart |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | cause bronchodilation and uterus relaxation |  | 
        |  |