Treatment strategy in depression

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Abstract
Antidepressants are ineffective in about 30% of patients with major depression. Some authors then advise treatment of non-responders with (non-tricyclic) more selective reuptake inhibitors. In a double-blind, partial crossover study, 71 patients were selected for treatment during 4 weeks with oxaprotiline and/or fluvoxamine, two non-tricyclic antidepressants that are selective reuptake inhibitors of noradrenaline and serotonin respectively. All patients had failed to respond to earlier treatment with cyclic antidepressants during the current episode. Only 13% of the patients responded, with 27% of them responding to oxaprotiline and none to fluvoxamine. Moreover, a low response of 27% was also obtained in the crossover phase, which included all non-responders to the first treatment, oxaprotiline being effective in 39% and fluvoxamine in 10% of the patients. The results indicate that selective reuptake inhibitors are not an effective alternative for nonresponders to other cyclic antidepressants and that non-responders to "noradrenergic" antidepressants do not appear to have much chance of responding to "serotonergic" antidepressants and vice versa.

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