se·ro·to·ner·gic 
(sĕr′ə-tn-ûrjĭk) also se·ro·to·ni·ner·gic (-tō′nə-nûrjĭk)
(sĕr′ə-tn-ûrjĭk) also se·ro·to·ni·ner·gic (-tō′nə-nûrjĭk)adj.
Activated by or capable of liberating serotonin, especially in transmitting nerve impulses: serotonergic neurons; serotonergic drugs.
[SEROTON(IN) + -ERGIC.]