Imipramine is a medication belonging to the class of drugs known as tricyclic antidepressants (TCAs). It is primarily used in the treatment of depression, as well as other mood disorders such as anxiety and panic attacks.

Imipramine works by increasing the levels of certain neurotransmitters in the brain, including serotonin and norepinephrine. These neurotransmitters play key roles in regulating mood, emotions, and behavior. By blocking the reuptake of these neurotransmitters, imipramine helps to prolong their effects in the brain, which can alleviate symptoms of depression and improve overall mood.