Is Vitamin B6 (Pyridoxine) Safe with Olanzapine?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Do not exceed 100 mg/day of B6 supplementation without medical guidance due to neuropathy risk at high doses. Moderate B6 intake (10–50 mg/day) may be discussed with your provider, particularly if you have elevated homocysteine levels or are at risk for movement disorders.
Why this interaction occurs
Antipsychotics including olanzapine can elevate homocysteine levels and are associated with tardive dyskinesia (TD). Vitamin B6 is a cofactor in homocysteine metabolism and has been studied as an adjunctive treatment for TD and antipsychotic-induced movement disorders in several randomized trials. High-dose B6 carries its own peripheral neuropathy risk. The evidence for B6 in TD management is emerging and clinically relevant.
Evidence
Evidence level: moderate.
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 71,098 reports mentioning Olanzapine. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the Olanzapine + supplement combination on this page.
FAERS reports are voluntary and cannot prove that a drug caused an event. Do not use report counts to assess the safety of this specific drug-supplement pair.
Frequently asked questions
Related interactions
All Vitamin B6 (Pyridoxine) interactions → · All Olanzapine interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.