The mechanism for how vitamin B6 alleviates nausea is also largely unknown,[1] although it has been suspected since the 1940s that B6 functions as an antiemetic.[2][2] Currently, vitamin B6 is considered a viable treatment for nausea and vomiting in pregnancy, and it is sometimes combined[3] with the drug doxylamine.
How does vitamin B6 work to alleviate nausea?
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•Last Updated: May 16, 2025
Vitamin B6 is suspected to function as an antiemetic (antivomiting treatmebt), although its exact mechanism for alleviating nausea remains largely unknown. It is considered a viable treatment for nausea and vomiting during pregnancy and is sometimes used in combination with the drug doxylamine.