Articles

S-adenosyl-l-methionine (SAMe) as antidepressant: meta-analysis of clinical studies.

Author

Bressa GM

Date

1994

Journal

Acta Neurol Scand Suppl

Abstract

INTRODUCTION--S-adenosyl-l-methionine (SAMe) is a naturally-occurring substance which is a major source of methyl groups in the brain. MATERIAL AND METHODS--We conducted a meta-analysis of the studies on SAMe to assess the efficacy of this compound in the treatment of depression compared with placebo and standard tricyclic antidepressants. RESULTS--Our meta-analysis showed a greater response rate with SAMe when compared with placebo, with a global effect size ranging from 17% to 38% depending on the definition of response, and an antidepressant effect comparable with that of standard tricyclic antidepressants. CONCLUSION--The efficacy of SAMe in treating depressive syndromes and disorders is superior with that of placebo and comparable to that of standard tricyclic antidepressants. Since SAMe is a naturally occurring compound with relatively few side-effects, it is a potentially important treatment for depression.