SAM-e for Mood Stabilization
SAM-e has genuine antidepressant signal, including as an SSRI adjunct, but trial quality is limited and it can destabilise bipolar mood.
Overview
Verdict
How It Works
Dosing & Protocol
Typical dose
- Recommended dose
- Studied at 400-1,600 mg/day in unipolar depression; SAM-e can destabilise mood and is contraindicated in bipolar disorder
- Expected timeframe
- Not established
Protocol
- form
- Enteric-coated S-adenosyl-L-methionine
- duration
- Not applicable
- co factor
- Evidence is mixed and the direction of risk is clear. Mood stabilization in clinical usage means preventing the mood episodes of bipolar disorder, and no trial has tested SAM-e for this. What the literature contains instead is repeated evidence of the opposite: case reports and trial data describing SAM-e precipitating hypomania and mania, including in people with no prior bipolar diagnosis, and accelerating cycling. The randomised evidence supporting SAM-e is confined to unipolar depression and osteoarthritis. In the population where mood stabilisation is a meaningful goal, SAM-e is a destabilising agent rather than a stabilising one.
- titration
- Not applicable
- starting dose
- Not recommended for this outcome. Depression trials used 400-1,600 mg/day of enteric-coated SAM-e
Evidence
What the studies say
No studies are yet linked to both SAM-e and Mood Stabilization.
Safety
Caveats
This is a contraindication, not a treatment. Bipolar disorder requires proper mood stabilising treatment - lithium, valproate, lamotrigine or atypical antipsychotics - with appropriate monitoring, and agents that push mood upward including antidepressants and SAM-e can precipitate mania or accelerate cycling. SAM-e has a particularly well-documented association with manic switching. Do not stop or substitute prescribed mood stabilisers; abrupt lithium discontinuation carries a high relapse risk. Seek urgent assessment for reduced need for sleep with elevated or irritable mood, racing thoughts, unusual spending or risky behaviour, or any thoughts of self-harm. Other SAM-e safety: it is serotonergic, so it should not be combined with SSRIs, SNRIs, MAO inhibitors, tramadol, triptans or St John wort without medical advice given serotonin syndrome risk - relevant since many people with bipolar disorder take multiple psychotropics. Nausea, insomnia, anxiety and gastrointestinal upset are common and dose-related. It raises homocysteine, so B12, folate and B6 status matters. Safety in pregnancy and breastfeeding is not established.
Less likely to help if
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