NCIt 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. (NCI04);