Definition

A synthetic tricyclic derivative, antidepressant Imipramine enhances monoamine neurotransmission in certain areas of the brain. It also induces sedation through histamine 1 receptor blockage; hypotension through beta-adrenergic blockage; and diverse parasympatholytic effects. Imipramine has less sedative effect than other members of its therapeutic family. It is used in major depression, dysthymia, bipolar depression, attention-deficit disorders, agoraphobia, and panic disorders.