FIELD T-1 

 Column 57 



Antagonizes, antidotes, inhibits, neutralizes, decreases, blocks the biological response 

 (identified only as a biological condition or process in Field T-2) to the secondary compound 

 (coded in Field D). (Field T-2: Write the secondary compound's antagonized action. ) 



Simulates (replaces) the secondary compound's action on the biological condition or process 

 in Field T-2; the secondary compound is coded in Field D. 



Has an additive effect with the secondary compound (coded in Field D) to produce or affect the 

 biological response (coded as a biological condition or process in Field T-2). I. e. , the test 

 compound and secondary compound summate (with a single, coincidental administration of both) 

 to increase, decrease, stop, induce, or make irregular the biological condition or process 

 coded in Field T-2; when Symbol C is used. Field T-1 can not indicate which of these effects 

 is the result of the summative action of the two compounds (write the action in Field T-2). 



Inhibition of nerve action on its end organ, when the nerve is an accelerator or initiates the 

 end organ's activity. (Reduces normal biological response to the action of the nerve indicated 

 in Field H-1, as evidenced by the test compound's allowing the biological condition or 

 physiological process [Field T-2] to be produced or increased by the stimulated and chemically 

 treated nerve only to a degree less than that to which it is normally increased or caused by the 

 stimulated but chemically untreated nerve. ) 



Inhibition of nerve action on its end organ, when the nerve is an inhibitor of the end organ's 

 activity. (Reduces normal biological response to the action of the nerve indicated in Field 

 H-1, as evidenced by the test compound's allowing the biological response or physiological 

 process [Field T-2] to be decreased by the stimulated and chemically treated nerve only to a 

 degree less than that to which it is normally depressed or prevented by the stimulated but 

 chemically untreated nerve. ) 



Intensification of nerve action on its end organ, when the nerve is an accelerator or initiates 

 the end organ's activity. (Intensifies the normal biological response to the action of the nerve 

 indicated in Field H-1, as evidenced by increase of the biological condition or physiological 

 process [Field T-2] by the stimulated and chemically treated nerve beyond the degree to which 

 it is normally increased or caused by the stimulated but chemically untreated nerve. ) 



Intensification of nerve action on its end organ, when the nerve is an inhibitor of the end 

 organ's activity. (Intensifies the normal biological response to the action of the nerve indi- 

 cated in Field H-1, as evidenced by decrease of the biological condition or physiological 

 process [Field T-2] by the stimulated and chemically treated nerve below the degree to which 

 it is normally decreased by the stimulated but chemically untreated nerve. ) 



The following six symbols, J through R, can be used only when Field E is coded 

 with a pathological state and when a symptom is coded in Field T-2 by a symbol whose 

 definition represents a normal biological condition or process which, however, (1) has 

 been made abnormal by the pathology coded in Field E and which (2) is specifically 

 treated or affected by the test compound. If the Field T-2 entry (a pathology symptom) 

 is a symbol whose definition identifies it specifically as a pathological condition or 

 process and if it is tested or affected by the test compound. Symbol 3 must be used 

 instead of Symbol J, K, or L; Symbol 2 instead of Symbol M, N, or P; or Symbol 1 

 instead of Symbol P, Q, or R. Consult the Key. 



Returns the subject to normal (i. e. , cures the host in Field J) by increasing or speeding the 

 pathologically reduced or retarded biological condition or process coded in Field T-2. 

 Symbol J implies complete relief from the pathological symptom coded in Field T-2; if only 

 improvement but not cure is provided by the test compound, use Symbol M. 



Returns the subject to normal (i. e. , cures the host in Field J) by decreasing or slowing the 

 pathologically intensified or accelerated biological condition or process coded in Field T-2. 

 Symbol K implies complete relief from the pathological symptom coded in Field T-2; if only 

 improvement but not cure is provided by the test compound, use Symbol N. 



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