In people with kidney failure, taking ferrous ascorbate, folic acid and zinc along with zinc carries a risk of zinc building up in the body.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.
What to do: If you have kidney failure, ask your doctor or pharmacist before taking these together. They may check you or change the plan.