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. Check for active clinical trials using this agent. (NCI Thesaurus)