How long do the symptoms of vitamin B6 toxicity last?

Depends. Vitamin b6, when taken usual therapeutic dose, is not toxic. It can cause significant adverse effects, however, if you take too much of it for a prolonged period. Depending upon the amount of vitamin B6 ingestion, toxicity ranges from nausea to dependence or permanent peripheral neuropathy.

Related Questions

What is the toxicity of vitamin b6?

None. Vit b6 is hydrosoluble, any extra you take, it will be eliminated. Read more...
Tingling & pain. Vitamin b6 toxicity is exceedingly rare and usually only occurs at prolonged doses in excess of 500mg daily. However, some people are more sensitive to it and experience adverse symptoms at lower doses. Symptoms of toxicity include peripheral neuropathy - pain and tingling of fingers or toes. Stopping the supplement at the first sign of symptoms prevents permanent affects. Read more...