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J Affect Disord. 1986 Jan-Feb;10(1):9-13.

Folic acid enhances lithium prophylaxis.


A double-blind trial was carried out to investigate the effect on affective morbidity of a daily supplement of 200 micrograms folic acid or a matched placebo in a group of 75 patients on lithium therapy. During the trial the patients with the highest plasma folate concentrations showed a significant reduction in their affective morbidity. Patients who had their plasma folate increased to 13 ng/ml or above had a 40% reduction in their affective morbidity. It is suggested that a daily supplement of 300-400 micrograms folic acid would be useful in long-term lithium prophylaxis.

[Indexed for MEDLINE]

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