bcp potentiated the analgesic and antipyretic effects of 4-aminoantipyrine ( 4a ) , methylaminoantipyrine ( ma ) , aminopyrine ( am ) and isopropylaminoantipyrine ( ipa ) , which were substituted by the alkylamino group at 4-position of the pyrazolone ring .
C0002696
aminoantipyrine
C0002586
aminopyrine