the c-terminal tetrapeptide of cck ( cck 4 ) and pentagastrin were found to be ineffective in all tests but caerulein and molluscan cardioexcitatory neuropeptide ( fmrf-amide ) , like cck 8 , produced antinociception in the paw pressure test .
C0027895
neuropeptide
C0060608
fmrf-amide