* Plasma monitoring for TCA's is advisable, because of plasma-reponse relations, genetic polymorphism and under/overdosing.<ref><ref name="">{{cite web |url=http://tdm-monografie.org/monografie/tca-tricyclische-antidepressiva}}</ref><ref name="TDM mononografie">{{cite web |url=http://tdm-monografie.org/monografie/tca-tricyclische-antidepressiva |publisher=nvza}}</ref>