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Study Links Depakote with Lower IQ

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Atlanta, GAA new study suggests the use of Depakote while pregnant is linked with having children with a lower IQ. Previous studies suggested that Depakote side effects included an increased risk of so-called Depakote birth defects in children exposed to the anti-seizure medication prior to birth.

The most recent study, published online in The Lancet Neurology (1/23/13), studied 311 children whose IQ was assessed at six years of age. Researchers found that the average IQ among children exposed to valproate (the generic name for Depakote) prior to birth was 97, whereas the average IQ of children exposed to other antiepileptic drugs was 105 or higher.

Researchers found that the effect of valproate on IQ was dose dependent, meaning the higher the dose, the greater the effect on the children’s IQ. Children exposed to less than 1000 mg per day had IQ levels similar to children exposed to other antiepileptic drugs. Among the cognitive abilities tested were verbal ability and memory.

“Children exposed to valproate did poorly on measures of verbal and memory abilities compared with those exposed to the other antiepileptic drugs,” researchers wrote. They concluded, “Fetal valproate exposure has dose-dependent associations with reduced cognitive abilities across a range of domains at 6 years of age.”

“These results build on our earlier work to show that valproate usage during pregnancy has a significant negative effect on children’s IQ, which lasts beyond their earliest years,” said Professor Kimford Meador, lead researcher on the study, in a news release (found online at eurekalert.org; 1/22/13). He further noted that because IQ at age six is strongly related to adult IQ, these test results suggest that valproate use during pregnancy could have long-term adverse effects on a child’s IQ.

The same children were reportedly used in a similar study at three years of age, to determine the effects of valproate on their cognitive abilities. The outcome of that study resulted in the US Food and Drug Administration (FDA) issuing a warning that exposure to valproate prior to birth was associated with impaired cognitive functions. At the time, the FDA noted that the long-term effects of valproate on IQ and cognitive development are not known.

Valproate has also been linked to an increased risk of neural tube birth defects.

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READER COMMENTS

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I have suffered many side effects from Psychiatric medications I have put on much weight that caused weight gain and in turn many other problems Then I found out I was vitamin D and foliate dificiant as well as being low in iron yes I would like some comp. but realing the Pharmacy counties owe the goverment money and may that money can be use for human services programs and health care

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