Inclusion Criteria:

          -  Participants may be female or male who are 18 years old or older.

          -  Ability to consent to treatment - patients or their legally authorized representative
             must be informed of the investigational nature of this study and must sign and give
             written informed consent in accordance with institutional and federal guidelines.

          -  Previously untreated breast cancer determined by a core needle biopsy showing invasive
             ductal carcinoma or invasive lobular carcinoma.

          -  A prior, unrelated, breast cancer is allowed.

          -  All breast cancers with possibility for surgical excision will be included.

          -  Patient must be able to take oral medications. Patients may not have any impairment of
             gastrointestinal function or gastrointestinal disease that may significantly alter the
             absorption of the study drug.

          -  Females of childbearing potential must have a negative serum or urine beta human
             chorionic gonadotropin (β-hCG) pregnancy test result within 14 days prior to the first
             dose of imipramine.

          -  Patients must be eligible for surgical resection of their breast cancer or repeat
             biopsy after completing treatment.

          -  Patients must have a complete history and physical examination within 30 days prior to
             registration.

          -  Patients must have a performance status of ECOG 0, 1, 2.

          -  Tissue block of initial biopsy specimen is available.

          -  Patient may not be concurrently enrolled in another investigational drug treatment
             study.

        Exclusion Criteria:

          -  Known diagnosis of major depressive disorder, bipolar depression or psychosis

          -  ECOG 3 or 4

          -  Age >= 70 years

          -  Renal impairment defined as EGFR <30

          -  Hepatic impairment as judged by clinical investigator or bilirubin >2

          -  As judged by the investigator, severe uncontrolled concurrent medical conditions,
             psychiatric illness or social condition that would limit compliance with study
             requirements

          -  History of cardiac disease (arrhythmia, conduction abnormality, congenital prolonged
             QT syndrome, or prolonged QTc rhythm noted during initial EKG >480 ms)

          -  Current use of SSRI, SNRI, MAO inhibitor, tramadol or trazadone; or use of these
             agents within 14 days

          -  Inflammatory breast cancer

          -  Suicidal ideation or history of suicide attempt

          -  Myocardial infarction within 3 months of study initiation.

          -  Patients with Angle-Closure Glaucoma

          -  Pregnant or breast-feeding women. As there have been no well-controlled studies
             conducted with pregnant women to determine the effect of imipramine on the fetus.
             However, there have been clinical reports of congenital malformations associated with
             the use of the drug.