FIELD P 

 Columns 50 and 51 



As in the case of certain other fields (Fields M, N, O, and V), it is seldom possible to double 

 code in Field P and another field in the same line. For example, if Field M is double coded (to indicate 

 that the test evaluation would be nearly the same whether the test compound was administered at either 

 of the higher or lower doses indicated), Field P can not be double coded (to indicate, e. g. , that the 

 test evaluation would be nearly the same whether the time between administration of the test compound 

 and secondary compound was longer or shorter) unless each coded dose, administered after each of the 

 coded periods, produced the same result . (This is also discussed, for combined double coding of Fields 

 M or N and other fields, in Division 17 of the Specific Directions and Explanations for Fields M and N. ) 

 If Field P is double coded, therefore, it is improbable that Fields M, N, O, and V can be also double 

 coded in the same line. 



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