What do I tell my doctor before taking ferrous sulfate with folic acid?

You should talk with your doctor before taking ferrous sulfate and folic acid. The doctor needs to know your full medical history. This may include any alcohol use, liver or stomach/intestinal problems and vitamin B12 deficiencies. Your doctor also needs to know about any allergies. You may also have medical conditions that affect how these supplements work. This includes any iron overload problems.