After conducting a thorough research, there is no conclusive evidence to suggest that prenatal vitamins can reduce the risk of alcohol-related complications in pregnancy. Prenatal vitamins are essential for providing necessary nutrients to the developing fetus, but they do not negate the harmful effects of alcohol consumption during pregnancy.

Alcohol consumption during pregnancy can lead to fetal alcohol spectrum disorders (FASDs), which include a range of physical, behavioral, and learning problems. The Centers for Disease Control and Prevention (CDC) strongly advises against drinking alcohol during pregnancy [1].

Prenatal vitamins typically contain essential nutrients such as folic acid, iron, calcium, and vitamin D, which support the baby's growth and development [2]. However, these vitamins do not counteract the negative effects of alcohol on the fetus.

It is important to note that no specific drug or supplement has been scientifically proven to reduce the risk of FASDs once alcohol consumption has occurred. The most effective way to prevent FASDs is to abstain from alcohol consumption during pregnancy [3].

In summary, prenatal vitamins are crucial for a healthy pregnancy, but they do not reduce the risk of alcohol-related complications. It is essential to avoid alcohol consumption during pregnancy to prevent fetal alcohol spectrum disorders.

Sources:
[1] <https://www.cdc.gov/ncbddd/fasd/alcohol-use.html>
[2] <https://www.marchofdimes.org/pregnancy/prenatal-vitamins.aspx>
[3] <https://www.drugpatentwatch.com/fetal-alcohol-spectrum-disorders-fasds-prevention-and-treatment-options/>