Skip to content
My WebMD Sign In, Sign Up

What are the risks of taking iron?

  • Side effects. Taken at normal doses, iron supplements may cause upset stomach, stool changes, and constipation.
  • Risks. Don't start taking iron supplements unless your health care provider tells you that you need them. That's especially true if you have a chronic health condition. Women who plan to become pregnant should also check with a health care provider before they start daily iron supplements.
  • Interactions. Iron can interact with many different drugs and supplements. They include antacids, anti-inflammatory painkillers, antibiotics, calcium, and others. If you take daily medicine, ask your health care provider if it’s safe for you to take iron supplements.
  • Overdose. Iron overdose is a common cause of poisoning in children. It can be fatal. Signs of an iron overdose include severe vomiting and diarrhea, stomach cramps, pale or bluish skin and fingernails, and weakness. Treat these signs as a medical emergency. Call poison control and get medical help immediately.

Supplements
Savings Poll

How do you save money on vitamins and supplements?

View Results