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  • Title: Distal colon motility as a predictor of antidepressant response to fenfluramine, imipramine and clomipramine.
    Author: Lechin F, Van der Dijs B, Gómez F, Arocha L, Acosta E, Lechin E.
    Journal: J Affect Disord; 1983 Feb; 5(1):27-35. PubMed ID: 6220041.
    Abstract:
    The present study gathers results obtained in the treatment of 86 depressed outpatients. The patients were grouped according to their distal colon tone, low-IT and high-IT. All the patients fulfilled the Research Diagnostic Criteria for nonpsychotic unipolar major depressive disorder and were rated on a slightly modified 18-item Hamilton Rating Scale for Depression (HRS). They also completed the 21-item self-rating Beck Depression Inventory (BDI). The 46 subjects from the high-IT group and the 40 subjects from the low-IT group were divided into three subgroups each for double-blind trials performed with clomipramine (CMI), imipramine (IMI), and fenfluramine (FENF). Normalization of HRS and BDI scores and reduction of IT were obtained with IMI and FENF but not CMI in high-IT patients; whereas normalization of both scores and increase in IT were obtained with CMI but not with IMI or FENF in low-IT patients. FENF was not tolerated in this last group. HRS and BDI scores correlated well during in-treatment periods. Our results suggest that distal colon tone is a guide to determining the pharmacotherapy in the depressive disorders. Furthermore, it was shown that FENF is a useful anti-depressant drug in one type of patient.
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