NutriStack
Methylfolate and Risperidone, a synergy.
Methylfolate has been studied as an adjunct in medicated schizophrenia patients with residual symptoms. Benefits appear selective and may depend on folate-pathway biology, baseline folate status, or elevated homocysteine rather than applying to everyone. It should not be used to replace risperidone or other antipsychotic treatment.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.
From the interaction database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.
At a glance
- Substances
- Methylfolate and Risperidone
- Pair type
- Synergy
- Evidence (highest tier)
- Moderate
- Source citations
- 2 sources
- Stack Score effect
- +2 to your Stack Score (per scored synergy row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Synergy · Moderate evidence
Synergy
What is happening. Methylfolate has been studied as an adjunct in medicated schizophrenia patients with residual symptoms. Benefits appear selective and may depend on folate-pathway biology, baseline folate status, or elevated homocysteine rather than applying to everyone. It should not be used to replace risperidone or other antipsychotic treatment.
Mechanism. L-methylfolate is the bioactive folate form used in one-carbon metabolism and methylation pathways that support monoamine synthesis and homocysteine remethylation. These pathways may complement antipsychotic treatment in biologically selected patients, but they do not directly replace dopamine D2 receptor blockade.
Recommendation. Consider methylfolate only as an adjunct and tell your prescriber before adding high-dose products. Do not change risperidone dosing on your own. Ask whether folate, B12, and homocysteine testing is appropriate, especially if you have poor diet, anemia, neuropathy symptoms, or known folate-pathway variants.
Sources (2)
- Roffman JL, Petruzzi LJ, Tanner AS, Brown HE, Eryilmaz H, Ho NF, et al. Biochemical, physiological and clinical effects of l-methylfolate in schizophrenia: a randomized controlled trial. Mol Psychiatry. 2018;23(2):316-322. PMID 28289280
- Roffman JL, Lamberti JS, Achtyes E, Macklin EA, Galendez GC, Raeke LH, et al. Randomized multicenter investigation of folate plus vitamin B12 supplementation in schizophrenia. JAMA Psychiatry. 2013;70(5):481-489. PMID 23467813
Stack Score
How this pair moves the number.
Effect on the composite score
If both Methylfolate and Risperidone are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
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