Folic acid is a prescription medication that is given to people who are lacking folic acid, whether from their diet or from anemia. Many prenatal vitamins contain folic acid as well because it prevents certain anemia-related complications during the pregnancy. While side effects of the medications are uncommon, there have been a few common, non-threatening side effects.
Folic acid can cause a bitter or foul taste of the mouth. In addition, a person may feel bloated or have an increased abdominal size, also know as abdominal distension.
People who use folic acid may also find that they do not feel hungry. They may have a decreased appetite.
Bowel and Bladder
Folic acid can also cause increased gas or flatulence.
People who have been taking folic acid have reported trouble focusing and concentrating.
Insomnia is also a reported side effect of people who take folic acid.
Dangerous Side Effects
There are some dangerous side effects of folic acid that need to be reported immediately: trouble breathing, feeling that your throat is closing, swelling of the tongue, and hives.