NCIt definition : The hydrochloride salt form of maprotiline, a tetracyclic antidepressant closely related
to the tricyclic antidepressants with adrenergic activity and sedative properties.
Maprotiline hydrochloride exerts its effect by blocking the re-uptake of norepinephrine,
thereby increasing the synaptic concentration of norepinephrine in the central nervous
system and subsequently prolonging the action of norepinephrine on central receptors.;