135. ANTAGONISTS AND POTENTIATORS OF DRUGS ACTING ON THE BRONCHI (Continued) 



Part III; ANTIHISTAMINES (Continued) 

 C = constricts, D = dilates, A = antagonizes active drug effect, I = inactive (i.e., without influence on effect of 

 active drug), P = potentiates active drug effect. Parentheses in Columns F and H indicate action is slight, irregular, 

 or doubtful, and the original literature should be consulted. 



Antagonist or Potentiator 

 (Synonym) 



(A) 



Active Drug 



Compound 



(B) 



Effect 



(C) 



Species 



(D) 



Antagonist or Potentiator Effect 



Local 



t^g/ml 



(E) 



Systemic 



Action 



(F) 



mg/kg Action 



Reference 



(G) 



(H) I 



(I) 



232 



