central nervous system : mdp-lys ( l18 ) had no effect on behavior , spontaneous motor activity , electroshock- and chemoshock-induced convulsions , hexobarbital sleeping time , pain threshold ( mice ) , conditioned avoidance response ( rats ) at a dose of 0.4 mg/kg , s.c. and eeg as well as spinal reflex ( cats ) at a dose of 0.4 mg/kg , i.v .
C0004927
behavior
C0037313
sleeping