The last time fatality from the disease was recorded on Apr 13
Valproate, which has been manufactured in France by Sanofi under the brand Depakine in the field of epilepsy and Depakote and Depamide in bipolar disorders, is also believed to cause slow neurological development.
ANSM, France's drug authority, said it would also publish a study on neurological effects in the second half of 2017.
Sanofi was not immediately available for comment.
Valproate was approved as an anti-epileptic drug in France in 1967 and has become one of the most widely prescribed treatments for the condition worldwide.
Parents of those affected say the French state and Sanofi were too slow to warn of the side effects of the drug, after the risks to foetuses became clear by the early 1980s.