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



Part UI: 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) 



Active Drug 



Compound 



Effect 



Species 



Antagonist or P otentiator E ffect 



Local i System ic j Reference 



Action 



|ig/ml |Action 



ag/kg 



(A) 



(B) 



(C) 



(D) 



(E) I (F) 



(G) 1 (H) I (IT 



234 



