NCIt definition : The hydrochloride salt form of desipramine, a secondary amine tricyclic antidepressant
(TCA). In the central nervous system (CNS), desipramine hydrochloride blocks the re-uptake
of neurotransmitters, including norepinephrine and serotonin. This leads to an increase
in the amount of these neurotransmitters in the synaptic cleft and prolongs their
activities postsynaptically.;