Pregnancy interaction: Adequate and well-controlled human studies have failed to demonstrate a risk to the fetus in the first trimester of pregnancy (and there is no evidence of risk in later trimesters).

Side Effects: If you think there was an overdose, call your local poison control center or ER right away. Signs of a very bad reaction to the drug. These include wheezing; chest tightness; fever; itching; bad cough; blue or gray skin color; seizures; or swelling of face, lips, tongue, or throat. Any rash. Side effect or health problem is not better or you are feeling worse.

How to use: Dose is based on patients condition. It comes as a tablet to take by mouth, with or without food.

How it works: Folic acid is a diet aid that helps the body make healthy red blood cells. It stops some types of birth defects.