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The Motherisk Nausea and Vomiting of Pregnancy (NVP) Forum

Motherisk receives questions from around the world about morning sickness symptoms, effects, treatments and ways to cope. Those questions and answers are posted here for anyone to read, provided the reader acknowledges and accepts the proviso and disclaimer below.

High dose of vitamin B6

NVP Counsellor
Date: 2007-12-13

I am 13 1/2 weeks pregnant. I took 185 mg daily of vitamin B6 throughout my first trimester of pregnancy as I thought B vitamins were safe. I have since read that high doses of prenatal vitamin B6 can cause seizures in babies. The highest dose I took per tablet was 75mg (maximum one time per day) and then 25 to 50mg at other times. I am concerned about the effect this could have on the baby. Based on the info I heard, I currently take no more than 60 to 80 mg per day. I am concerned about the effect that my previous dose of 185 mg could have had on the baby. What is the risk based on the studies to date? Should I continue taking vitamin B6 at all? I no longer feel queasy. Thank you.

Vitamin B6 is considered safe to take in doses of up to 200mg/day. If you feel you do not need the vitamin B6 anymore, you can start to go off it gradually and then assess your NVP. If it comes back,you may need to consult your physicians about going on it again.

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