perfusion with the antidepressants amitriptyline or maprotiline ( 4.8 micronm ) or mianserin ( 28.8 micronm ) reduced ventricular force , did not change heart rate and only amitriptyline reduced atrial force and lengthened the a-v contraction interval .
C0003289
antidepressants
C0002600
amitriptyline