Vitamin B12 Supplementation in Treating Major Depressive Disorder: A Randomized Controlled Trial
Ehsan Ullah Syed2, Mohammad Wasay1, *, Safia Awan1, *
Identifiers and Pagination:Year: 2013
First Page: 44
Last Page: 48
Publisher ID: TONEUJ-7-44
Article History:Received Date: 28/6/2013
Revision Received Date: 6/9/2013
Acceptance Date: 8/9/2013
Electronic publication date: 15/11/2013
Collection year: 2013
open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
Recent literature has identified links between vitamin B12 deficiency and depression.We compared the clinical response of SSRI-monotherapy with that of B12-augmentation in a sample of depressed patients with low normal B12 levels who responded inadequately to the first trial with the SSRIs.
Patients with depression and low normal B12 levels were randomized to a control arm (antidepressant only) or treatment arm (antidepressants and injectable vitamin B12 supplementation).
A total of 199 depressed patients were screened. Out of 73 patients with low normal B12 levels 34 (47%) were randomized to the treatment group while 39 (53%) were randomized to the control arm. At three months follow up 100% of the treatment group showed at least a 20% reduction in HAM-D score, while only 69% in the control arm showed at least a 20% reduction in HAM-D score (p<0.001). The findings remained significant after adjusting for baseline HAM-D score (p=0.001).
Vitamin B12 supplementation with antidepressants significantly improved depressive symptoms in our cohort.