Safety Profile
Overall safety rating: Generally Safe
SAMe (S-Adenosyl Methionine) Side Effects & Safety
This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer
Potential Side Effects
- Mild GI upset (nausea, diarrhea) — less frequent than with NSAIDs
- Anxiety or insomnia at higher doses
- Headache (uncommon)
- May trigger mania in individuals with bipolar disorder — use with caution
- Flatulence
Drug & Supplement Interactions
- Antidepressants (SSRIs, MAOIs, tricyclics) — risk of serotonin syndrome; avoid combining or use under medical supervision
- Levodopa — SAMe may reduce efficacy of levodopa in Parkinson disease
- Medications metabolized by methylation — SAMe is a methyl donor and may alter drug metabolism
Maximum Dose
Do not exceed: 1,600mg daily has been used in depression trials without significant safety concerns; 1,200mg is typical for OA
References
- Soeken KL, Lee WL, Bausell RB, et al. (2002). Safety and efficacy of S-adenosylmethionine (SAMe) for osteoarthritis. Journal of Family Practice. PubMed
- Najm WI, Reinsch S, Hoehler F, et al. (2004). S-adenosyl methionine (SAMe) versus celecoxib for the treatment of osteoarthritis symptoms: a double-blind cross-over trial. BMC Musculoskeletal Disorders. DOI PubMed
- Kim J, Lee EY, Koh EM, et al. (2009). Comparative clinical trial of S-adenosylmethionine versus nabumetone for the treatment of knee osteoarthritis. Journal of Korean Medical Science. DOI PubMed
- Hardy ML, Coulter I, Morton SC, et al. (2003). S-adenosyl-L-methionine for treatment of depression, osteoarthritis, and liver disease. Evidence Report/Technology Assessment (AHRQ). PubMed