How does valproic acid affect pregnancy?

How does valproic acid affect pregnancy?

The use of VPA as a single drug (monotherapy) in the first trimester of pregnancy was associated with significantly increased risks of major and minor malformations, including a 20-fold increase in neural tube defects (NTDs) such as spina bifida, cleft lip and palate, cardiovascular abnormalities, genitourinary defects …

Why Valproic acid is contraindicated in pregnancy?

Valproic acid Pregnancy Warnings. Increased rates of fetal structural abnormalities, intrauterine growth retardation, and embryo-fetal death have occurred with valproate administration to pregnant animals at clinically relevant doses.

Is hepatic metabolism increased in pregnancy?

In vivo probe studies have shown that the activity of several hepatic cytochrome P450 enzymes, such as CYP2D6 and CYP3A4, is increased during pregnancy, whereas the activity of others, such as CYP1A2, is decreased.

Does valproic acid cross the placenta?

Valproic acid (VPA) is an antiepileptic drug that crosses the placenta freely.

Does valproic acid prevent pregnancy?

Valproic acid may have effects on sperm shape and movement that could make it harder to get pregnant. There are no studies that look at paternal effects on pregnancy while taking valproic acid.

Is valproic acid contraindicated in pregnancy?

The U.S. Food and Drug Administration (FDA) is advising health care professionals and women that the anti-seizure medication valproate sodium and related products, valproic acid and divalproex sodium, are contraindicated and should not be taken by pregnant women for the prevention of migraine headaches.

What are the pregnancy precautions for valproate?

Dietary folic acid supplementation should be routinely recommended both prior to conception and during pregnancy for patients taking valproate because studies in the general population show that folic acid supplementation prior to conception and during early pregnancy reduces the risk of neural tube defects.

Do you metabolize faster when pregnant?

Pregnancy Metabolism Your metabolism will increase, so you may have food cravings and the desire to eat more. Your body is requiring more nutrients to feed both you and your baby.

What is hepatic metabolism?

Therapeutics The constellation of chemical alterations to drugs or metabolites that occur in the liver, carried out by microsomal enzyme systems, which catalyze glucuronide conjugation, drug oxidation, reduction and hydrolysis.

Can valproic acid cause birth defects?

The researchers found that six birth defects were more common among children of women who took valproic acid during first trimester than children of women who did not take antiseizure drugs: Spina bifida. Atrial septal defect (a hole in the heart)

Which is the safest mood stabilizer during pregnancy?

Lamotrigine has been recognized as the overall safest mood stabilizer when both maternal and fetal complications are reviewed.

Is valproate safe in pregnancy?

Sodium valproate (Epilim) is contraindicated in pregnancy. Sodium valproate should not be used in women of child bearing potential unless other treatments are ineffective or not tolerated. The risk of congenital malformations in infants exposed to sodium valproate in utero has been estimated between 6 and 12%.

What are the risks of taking valproic acid during pregnancy?

Risk Summary: This drug is associated with a significant risk of birth defects and developmental disorders in children exposed during pregnancy; up to 4 in 10 babies are at risk of developmental disorders, and approximately 1 in 10 are at risk of birth defects.

What are the names of the metabolites of valproate?

Some of the known metabolites of valproate by these enzymes and uncharacterized enzymes include: 2-ene-valproic acid, 3Z-ene-valproic acid, 3E-ene-valproic acid, 4-ene-valproic acid, valproic acid β-O-glucuronide, 3-oxovalproic acid, 3-hydroxyvalproic acid, 4-hydroxyvalproic acid, 5-hydroxyvalproic acid, and valproyl-CoA, among others.

What is the role of valproic acid in the body?

Valproic acid is a branched-chain saturated fatty acid that comprises of a propyl substituent on a pentanoic acid stem. It has a role as an anticonvulsant, a GABA agent, an EC 3.5.1.98 (histone deacetylase) inhibitor, a teratogenic agent, a psychotropic drug, a neuroprotective agent and an antimanic drug.

How is valproic acid related to polycystic ovary syndrome?

There is evidence that shows valproic acid may increase the chance of polycystic ovary syndrome (PCOS) in women with epilepsy or bipolar disorder. Studies have shown this risk of PCOS is higher in women with epilepsy compared to those with bipolar disorder.